Not only to say the right thing in the right place, but, far more difficult still, to leave unsaid the wrong thing at the tempting moment.—G.A. Sala.

When we are in the company of sensible men, we ought to be doubly cautious of talking too much, lest we lose two good things, their good opinion and our own improvement; for what we have to say we know, but what they have to say we know not.—Colton.

Never hold any one by the button or the hand in order to be heard out; for if people are unwilling to hear you, you had better hold your tongue than them.—Chesterfield.

There is speaking well, speaking easily, speaking justly and speaking seasonably: It is offending against the last, to speak of entertainments before the indigent; of sound limbs and health before the infirm; of houses and lands before one who has not so much as a dwelling; in a word, to speak of your prosperity before the miserable; this conversation is cruel, and the comparison which naturally arises in them betwixt their condition and yours is excruciating.—La Bruyère.

Egotists cannot converse, they talk to themselves only.—A. Bronson Alcott.

The extreme pleasure we take in talking of ourselves should make us fear that we give very little to those who listen to us.—La Rochefoucauld.

Many can argue, not many converse.—A. Bronson Alcott.

One thing which makes us find so few people who appear reasonable and agreeable in conversation is, that there is scarcely any one who does not think more of what he is about to say than of answering precisely what is said to him.—La Rochefoucauld.

The first ingredient in conversation is truth, the next good sense, the third good humor, and the fourth wit.

It is a secret known but to few, yet of no small use in the conduct of life, that when you fall into a man's conversation, the first thing you should consider is, whether he has a greater inclination to hear you, or that you should hear him.—Steele.