To throw oneself into strange teachings is quite dangerous.

To know is to know that you know nothing. That is the meaning of true knowledge.

Clever talk can confound the workings of virtue, just as small impatiences can confound great projects.

It does not matter how slowly you go as long as you do not stop.

Gentlemen cherish worth; the vulgar cherish dirt. Gentlemen trust in justice; the vulgar trust in favor.

Do not worry if others do not understand you. Instead worry if you do not understand others.

Success depends upon previous preparation, and without such preparation there is sure to be failure.