The early Greek philosopher, such as we read about in Diogenes Laertius, is certainly one of the most amusing curiosities of the whole human menagerie. It seems to have been demanded of him that his conduct should be in marked contrast with the dictates of ordinary common sense. Had he behaved as other men are supposed to do his fellow-citizens would have thought his philosophy had not taught him much.
C.S. Peirce, Reasoning and the Logic of Things: The Cambridge Conferences Lectures of 1898, Kenneth Laine Ketner, ed. (1992).