To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure no-reply@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Two creation traditions in the Hebrew Bible yield particular resonances with the astrobiological notion of life as a planetary phenomenon: Genesis 1, with its “living landscapes,” and Job 38–41, featuring alien creatures and eco-centric wisdom.
Scientific research on life in the universe has caught the public's imagination. This new field of astrobiology has also deepened our understanding of life on Earth. One such insight has come from planetary science. It studies life on a planetary scale in the interaction of the Earth's geology and biology. But what are the implications of seeing life on this planetary scale for the views of life in the universe held by world religions? Astrobiology, Religion, and Society takes up this question. Drawing on a dialogue between astrobiologists and scholars of religion at the Center of Theological Inquiry, this volume of essays offers a detailed account of the varied ways in which Christian theology, Judaism, Islam, Hinduism, Buddhism, Daoism, and environmental ethics consider life on this planetary scale. This book shows the value of seeing life as a planetary phenomenon for global religious understanding and ethical responsibility in the Anthropocene.
This chapter introduces the fundamental idea of The Life of Freedom in Kant and Hegel: the notion that we can only make sense of autonomy by returning to the concept of life. This return is needed to understand fully the genesis, the form, and the reality of human freedom. Such an account can be developed by means of a systematic reconstruction of Kant’s and Hegel’s philosophies of freedom. As we can learn from Kant’s account, the notion of autonomy is threatened by the paradox of self-legislation and an opposition of freedom and nature that makes the reality of freedom unintelligible. As Kant already indicates and Hegel goes on to develop, we can overcome these problems by reconceiving of autonomy as a form of life. The chapter outlines the reading of Kant and Hegel supporting this view, situates the resulting systematic position in current debates on the sources of normativity and the nature of human freedom, and defines its relation to other approaches norm and nature (ethical naturalism, forms of life, and biopolitics).
This chapter examines two forms of emotionlessness and asks how it is that emotionlessness can be a name for two very opposed valence-laden situations. The best-known emotionless context is sometimes expressed by the term ‘emotional numbness’. It refers to a multi-faceted mental disturbance, often quite difficult to identify unequivocally with a specific pathology; a less well-known emotionless context is referred to as a form of ‘emotional detachment’. It has been experienced along centuries by nuns, monks, and spiritual teachers as a practice of inner liberation. Shedding light on these different situations of emotionlessness, the chapter discusses what a non-emotional life tells us about human beings, if emotions are truly at the heart of human beings.
The chapter focuses on the Romantic philosophy of nature. This will permit us to point out how the relational idea of the Romantic Self is consistent with the image of the human being as located within nature. The human is not opposed to nature and is neither her master, but she is immersed in (and even constituted by) the entanglement of natural forces. Following a line of reflections that unites Spinoza, Leibniz, Herder, and Goethe to the Romantics, I will show the centrality of ‘life’. This is the inexhaustible source of forms created through repetitions and metamorphoses. As we will see at the end of the chapter, the Romantic interpretation of life is at the basis not only of their anthropology but also of their idea of normativity. Norms are, for the Romantics, instructions provided with a compelling force and are not only the formulation of interdictions. The dynamic conception of nature allowed the Romantics to reintegrate human beings into it and overcome the opposition between nature and freedom, nature and politics; however, a distinction between human and animal, or human and plants, is maintained. It is, though, not maintained in the sense of domination.
Chapter 1 introduces the structure and purpose of the Australian Curriculum: Mathematics (Foundation to Year 6), exploring the importance of mathematics in education and everyday life. You will examine what it means to think, reason, and work mathematically, including the roles of inductive and deductive reasoning. This chapter also highlights how reasoning skills develop across the primary years and clarifies the relationship between numeracy and mathematics in the curriculum. These understandings form the basis for designing meaningful learning experiences that connect curriculum content with students’ developing mathematical reasoning.
This chapter focuses on the aesthetic appeal of inanimate nature, plants, and animals. Hegel’s ontological privileging of living beings, and especially of animal bodies, comes hand in hand with their aesthetic privileging, and so particular focus is given to the beauty of animateness, and especially to that of animal bodies. It is argued that, while most appearances of animal life serve to disclose their finitude, and so their ontological dependency, there are striking moments in which their remarkable animateness stands out as such. And given that Hegel gives us good reason to think of life, in its ontology, as an essentially infinite and autonomous movement, this conspicuousness of animation provides us with an ephemeral glimpse of a more profound beauty. As the various dimensions of animation and its ways of appearing are explored in some detail, the chapter comes to argue, somewhat counter to Hegel though for Hegelian reasons, that it is particularly in animal movement – as opposed to the more static shape of the animal body, which is largely Hegel’s focus – that the full splendor of animateness is revealed.
There are diverse motivations for travelling to the stars, both scientific and non-scientific. In this chapter we will examine primarily the scientific motivations, in particular what we can learn about stars and exoplanets as well as how to look for signs of extraterrestrial life. I give a brief survey of the nearest stars and their planets, in particular the nearest star system, Alpha Centauri, which happens to be a triple star system with at least one planet. We will also look briefly at some of the science a spacecraft can do en route to a star as it moves through the interstellar medium.
In this chapter I respond to two claims about unborn human beings: first that they have no rights because they have no interests; second that they have no rights because they are not persons.
An overview of what is known about the life and times of Hipparchus. Ancient testimony shows that he was born in Nicaea in Asia Minor, and worked latterly in Rhodes, but other details of his life can only be inferred from considerations of the intellectual milieu of his time, together with an examination of his astronomical observations, as detailed by Ptolemy. From these a possible timeline of his life is sketched out.
The interplay of life, form, and power is central to Ralph Waldo Emerson’s seminal essay, “Experience.” It also comes to mark his mature articulations of metaphysics and philosophy, nature and history, and politics and ethics in essays like “Power,” “Success,” or his lecture “Powers of the Mind.” Power is a key theme across Emerson’s relentlessly eclectic thinking – from the creative potentialities of the imagination and the intellect, and the deforming forces of love and loss, to the conditions that embolden individual selves to mastery, invention, and success. The impulsive, circulatory, transitory, depersonalizing, and yet aggrandizing modes of power that emerge in Emerson’s thinking – the powers of the heart and the powers of the mind – point to a vitality that not only appears as the content of his essays and lectures but is at once stylistically performed by them.
The ‘framing’ goods of life, sociality and rationality constitute necessary formal conditions of all the other, namely non-formal, goods. They are also intrinsically good; indeed, without any one of them, one ceases to be a human altogether. Life has absolute priority as a framing good, and is distinct from health (since one can be living and ill). After canvassing Aquinas’s and Finnis’s justification of life as a basic good, I offer my own bipartite justification in terms of life as both a ‘transcendent’ and ‘immanent’ human function. As to sociality, humans are essentially animals who live-in-relation, in the rich sense of developing various intentional relations to the world. If they fail to develop these, they become disabled (disability being a dysfunction and hence natural bad). I then detail various forms of sociality (which Aristotle calls philia, often translated ‘friendship’), along with the perfections or goods they embody. Last, I broach the framing good of rationality. This should be understood not as a virtue (either practical or theoretical), but rather as the ‘immanent character of human being and its form or mode of living-in-relation’. I explore its content in detail in Chapter 7.
This chapter looks at the poetic herbarium through the concept of vegetal ontology, addressing works by Elizabeth Barrett Browning, Christina Rossetti, and especially Emily Dickinson. The epistolary herbaria is a collaborative affair; “a flower in a letter,” like the tendencies of the plants themselves, seeded itself among various writers from across national frontiers. Not only were the form and the content of the messages vegetal but so also was the act of sending, disseminating the herbarium as so many seeds or spores, preceded by lovingly tending to, gathering and preserving flowers. In her work, Dickinson restages the elemental and cosmic clash of viriditas – “greenness,” or the self-refreshing power of finite existence that reaches its apotheosis in plants – and ariditas – “dryness,” or the scorching heat of sin understood in the extra-moral sense of everything that contravenes life and its renewal. Dickinson’s approach is at the same time allegorical and literal, plants providing her with a way of dealing with the inexorability of death. Analogous practices and preferences, like genres and authors, developed across nationalities, geographies, and time periods.
David Benatar’s Better Never to Have Been (2006) presents a view that came to be known as antinatalism: the claim that it is always wrong to have children, because life is bad, death is bad, and the only way to avoid both is never to be brought into existence. Benatar argues that his two-barreled—or “bipolar”—pessimism is not limited to humans but applies equally to all sentient beings. This extension, however, is prone to producing theoretical confusion. The anti-reproductive view laid out in the book is coherent as a form of human antinatalism, but Benatar’s own caveats prevent it from developing into the radical sentiocentrism it seems to promise.
This special issue is devoted to the question of sentience and its ethical implications. Sparked by debates in contemporary science and bioethics, the theme addresses one of the most fundamental and contested concepts in moral philosophy: what it means to be sentient, why it matters, and how our understanding of it should guide practices, policies, and ethical reasoning. While the idea of sentience has long been central to questions of moral standing, recent developments—from neuroscientific models to artificial intelligence—have made it increasingly urgent to clarify its nature, scope, and significance. The contributions in this volume approach these issues from a range of philosophical, scientific, and applied perspectives, showing how the concept of sentience both challenges and enriches contemporary ethics.
Beauty is significant to us in many different registers, but perhaps the least appreciated has to do with its distinctively metaphysical significance. For Hegel, aesthetic experience offers us its own distinctive perspective on the nature of reality, and in this book David Ciavatta shows how in Hegel's ground-breaking Aesthetics, his astute observations on art and on beauty in nature relate to and illuminate wider themes in his metaphysical thought. To experience and be compelled by the beautiful is, on Hegel's account, to have an intuitive access to certain metaphysical truths concerning the kind of being we are, concerning the divine, concerning the ultimate nature of the natural and historical worlds, and concerning our proper place within and relation to reality overall. Ciavatta's study illuminates the close connection between Hegel's aesthetics and his metaphysics, and links Hegel's thought with important themes in post-Kantian continental philosophy.
This chapter examines the debate among neo-Kantian thinkers about the origin, function, and reach of concepts. Neo-Kantianism inherits from Kant a series of dualisms, and that between concept and intuition attracted especially intense critical scrutiny. Cohen, Rickert and Cassirer can be understood as proposing a ‘functionalization’ of cognitive concepts that avoids a sharp and static distinction between ‘concept’ and ‘intuition’, and defending Kant’s transcendental project against naturalization and psychologization. The temporalization of concepts, in their constitutive role for experience, is thereby accentuated in different ways. This functionalization of concepts must, however, be situated against the emergence of the notion of value and the question raised by Nietzsche of the value of concepts, or knowledge, for life. The relation between concepts and values points to their historical and cultural embeddedness with reference to different worldviews, and hence reveals the relation between concepts, the unity of a world, and forms of life.
“The Poet” is what Adorno calls a “carpet essay,” which weaves its announced topics of the poet and poetry into a host of other subjects: character and expression; reception and abandonment; beauty and love; the present, new, and near; the Neoplatonic One or “whole”; and a fundamental “flowing” or “metamorphosis.” Chapter 8 focuses on Emerson’s romantic and proto-existentialist pronouncement that “the man is only half himself, the other half is his expression”; his theory that language “is fossil poetry”; and the proto-pragmatic picture of language in his statement that “all language is vehicular and transitive, and is good, as ferries and horses are, for conveyance, not as farms and houses are, for homestead.” Other topics treated are the place of what Kant calls “unbounded” ideas in Emerson’s account of poetry, thinking as a mixture of reception and activity, and the connections and differences of “Experience” and “The Poet.”
Gas turbine maintenance strategy relies heavily on accurate estimation of critical component life consumption of gas turbine engines during their operations. The equivalent operating hours (EOH) is a useful concept to measure the engine life consumption and support condition-based maintenance planning for gas turbine engines and their critical components. However, the current EOH calculation methods are mostly empirical and engine-specific, relying on vast operating data and experience. This paper introduces a novel physics-based method to estimate the EOH of the high-pressure turbine rotor blades of a gas turbine engine based on the damages caused by creep and low-cycle fatigue (creep-LCF) interactions. The method has been applied to a typical turbofan engine taking both 440-minute long-haul flight at one flight per day and 60-minute short-haul flight at two flights per day. A comparison of the predicted damages and life consumptions indicates that the creep EOH and also the creep damage of the engine of the short-haul aircraft is about 1.38 times that of the engine of the long-haul aircraft, the LCF equivalent operating cycles (EOC) and also the LCF damage of the engine of the short-haul aircraft is about 2.0 times that of the engine of the long-haul aircraft, and the total damages are more affected by the creep damage than the LCF damage with the creep damage being 6.78 times the LCF damage for the engine of the short-haul aircraft and 9.81 times for the engine of the long-haul aircraft. In addition, the total EOH or the total damage of the engine of the short-haul aircraft is about 1.44 times that of the engine of the long-haul aircraft. The proposed method shows a great potential to provide a quick estimate of the life consumption of gas turbine engines for condition monitoring, and it can be applied to other types of gas turbine engines.
While communism was proclaimed dead in Eastern Europe around 1989, archives of communist secret services lived on. They became the site of judicial and moral examination of lives, suspicions of treason or 'collaboration' with the criminalized communist regime, and contending notions of democracy, truth, and justice. Through close study of court trials, biographies, media, films, and plays concerning judges, academics, journalists, and artists who were accused of being communist spies in Poland, this critical ethnography develops the notion of moral autopsy to interrogate the fundamental problems underlying global transitional justice, especially, the binary of authoritarianism and liberalism and the redemptive notions of transparency and truth-telling. It invites us to think beyond Eurocentric teleology of transition, capitalist nation-state epistemology and prerogatives of security and property, and the judicialized and moralized understanding of history and politics.