There is scarce any one that does not observe something that seems odd to him, and is in itself really extravagant, in the opinions, reasonings, and actions of other men.
 John Locke, An Essay Concerning Human Understanding (1689). copy citation

Context

“but when we come to refer them to anything, as to their patterns and archetypes then they are capable of being wrong, as far as they disagree with such archetypes. CHAPTER XXXIII.—OF THE ASSOCIATION OF IDEAS. 1. Something unreasonable in most Men. There is scarce any one that does not observe something that seems odd to him, and is in itself really extravagant, in the opinions, reasonings, and actions of other men. The least flaw of this kind, if at all different from his own, every one is quick-sighted enough to espy in another, and will by the authority of reason forwardly condemn; though he be guilty of much greater unreasonableness in his own tenets and conduct, which he never perceives, and will very hardly, if at all, be convinced of.” source