Even after a man's religious faith has fallen to pieces and he stands for a while in doubt and confusion, there will inevitably arise within him the need of finding a fresh intelligible picture of the universe, for he cannot rest satisfied with a merely negative attitude toward life. And he will have to construct it out of the findings of scientific materialism, if nothing better comes to his hand. This mind will necessarily try to make sense of the universe and to harmonize its seeming contradictions into a logical unity.
-- Notebooks Category 20: What Is Philosophy? > Chapter 1: Toward Defining Philosophy > # 92