There are three things man needs to know to make him a spiritually educated man: the truth about himself, his world, and his God. The mystic who thinks it is enough to know the first alone and to leave out the last two, is satisfied to be half-educated.
-- Notebooks Category 20: What Is Philosophy? > Chapter 4: Its Realization Beyond Ecstasy > # 95
-- Perspectives > Chapter 20: What Is Philosophy? > # 24