"The only difference between a wise man and a fool is that a wise man knows he is a fool, and a fool thinks he is wise."

"The only difference between a wise man and a fool is, that the wise man knows himself to be a fool, and the fool knows himself to be wise."

"Some people take more care to hide their wisdom than their folly."

"A physician is an unfortunate gentleman who is every day required to perform a miracle; namely, to reconcile health with intemperance."

"A man should never be ashamed to own he has been in the wrong, which is but saying in other words, that he is wiser today than he was yesterday."