What seemed to be needed was to bring into mystical understanding and theory something of the precision which is so valuable a feature of modern science. Instead of getting lost in vague generalities or sentimental rhapsodies, as usually happened, a careful analysis of mystical technique and experience would surely be the most helpful service a writer on the subject could give his readers.

-- Notebooks Category 12: Reflections > Chapter 2: Philosophy and Contemporary Culture > # 58