“A wise man gets more use from his enemies than a fool from his friends.”

“Keep the extent of your abilities unknown.The wise man does not allow his knowledge and abilities to be sounded to the bottom, if he desires to be honored at all. He allows you to know them but not to comprehend them. No one must know the extent of his abilities, lest he be disappointed. No one ever has an opportunity of fathoming him entirely. For guesses and doubts about the extent of his talents arouse more veneration than accurate knowledge of them, be they ever so great.”

“Folly consists not in committing Folly, but in being incapable of concealing it. All men make mistakes, but the wise conceal the blunders they have made, while fools make them public. Reputation depends more on what is hidden than on what is seen. If you can’t be good, be careful.”

“Better mad with the rest of the world than wise alone.”

“Every fool stands convinced; and everyone convinced is a fool. The faultier a person's judgement the firmer their convictions.”

“He that has satisfied his thirst turns his back on the well.”

“Be open to suggestion, no one is so perfect that they may not need advice from time to time.”