The vivacity that augments with years is not far from folly.

No persons are more frequently wrong, than those who will not admit they are wrong.

There are few people more convinced of their own genius than those who complain of how stupid they are.

We love everything on our own account; we even follow our own taste and inclination when we prefer our friends to ourselves; and yet it is this preference alone that constitutes true and perfect friendship.

It's the height of folly to want to be the only wise one.

There are no accidents so unlucky from which clever people are not able to reap some advantage, and none so lucky that the foolish are not able to turn them to their own disadvantage.

In every walk of life each man puts on a personality and outward appearance so as to look what he wants to be thought; in fact you might say that society is entirely made up of assumed personalities.