His Theoretical Quotes
- Buffon, who, with all his theoretical ingenuity and extraordinary eloquence, I suspect had little actual information in the science on which he wrote so admirably… — James Boswell
- The book, as it stands, seems to me to be one of the most frightful muddles I have ever read, with scarcely a sound proposition… — John Maynard Keynes
- The amount of detailed information which an individual has at his command and his theoretical elaborations of the same are mutually dependent; they grow in… — Hermann Ebbinghaus