To know how to hide one's ability is great skill.

The mind cannot long play the heart's role.

The boldest stroke and best act of friendship is not to disclose our own failings to a friend, but to show him his own.

It's easier to know people in general than one person in particular

Men are inconsolable concerning the treachery of their friends or the deceptions of their enemies; and yet they are often very highly satisfied to be both deceived and betrayed by their own selves.

In infants, levity is a prettiness; in men a shameful defect; but in old age, a monstrous folly.

The reason why lovers are never bored together is that they are always talking of themselves.