Tis more dishonourable to distrust a friend than to be deceived by him.

The generality of friends puts us out of conceit with friendship; just as the generality of religious people puts us out of conceit with religion.

Sometimes we lose friends for whose loss our regret is greater than our grief, and others for whom our grief is greater than our regret.

What men call friendship is no more than a partnership, a mutual care of interests, an exchange of favors - in a word, it is a sort of traffic, in which self-love ever proposes to be the gainer.