There is no set of maxims more important for an historian than this: that the actual causes of a thing’s origin and its eventual uses, the manner of its incorporation into a system of purposes, are worlds apart; that everything that exists, no matter what its origin, is periodically reinterpreted by those in power in terms of fresh intentions; that all processes in the organic world are processes of outstripping and overcoming, and that, in turn, all outstripping and overcoming means reinterpretation, rearrangement, in the course of which the earlier meaning and purpose are necessarily either obscured or lost. 2