There is great skill in knowing how to conceal one's skill.

He who refuses praise the first time that it is offered does so because he would hear it a second time.

A person well satisfied with themselves is seldom satisfied with others, and others, rarely are with them.

Self-interest speaks all manner of tongues and plays all manner of parts, even that of disinterestedness.

Every one complains of a poor memory, no one of a weak judgment.

If it requires great tact to speak to the purpose, it requires no less to know when to be silent.

What often prevents our abandoning ourselves to a single vice is, our having more than one.