The general facts about human needs and abilities are perhaps clear enough and I shall assume that commonsense knowledge suffices for our purposes here.
John RawlsTheorizing is a distinctive activity. Within almost any discipline, for example, one finds a recognized distinction between theorists and nontheorists, theoretical work and non-theoretical work. To be sure, the distinction is often a matter of degree. Typically, theorists are identified by their commitment to developing an understanding of their subject matter that possesses certain characteristic features- they aim for generality, comprehensiveness, coherence, well-foundedness, and explanatoriness. They aim to formulate and justify systematic representational systems.
Theorizing is not to be confused with reflection, which can be more or less lacking in theoretical ambition. Nor is theorizing to be confused with criticism, which can be piecemeal. Theorizing is a form of reflection, and it can be critical, but theories can be vindicatory, even apologetic.