Talking and eloquence are not the same: to speak, and to speak well, are two things. A fool may talk, but a wise man speaks...

Wise men speak when they have something to say, fools speak because they have to say something

Who was it who said that a wise man speaks when he has something to say, but a fool speaks because he must?

Wise men talk because they have something to say; Fools, because they have to say something.

Wise men talk because they have something to say; fools, because they would like to say something. As empty vessels make the loudest sounds, so they that have the least wit are the greatest babblers.

A wise man first thinks and then speaks and a fool speaks first and then thinks.

To speak well is part of living well.

A fool is known by his Speech; and a wise man by Silence.

A smart person knows how to talk. A wise person knows when to be silent.

To speak much is one thing; to speak to the point another!

While it is good to speak well, it is better to speak the truth.

Man does not speak because he thinks; he thinks because he speaks. Or rather, speaking is no different than thinking: to speak is to think.

... the wise Man that holds his Tongue, says more than the Fool who speaks.

621. Speake fitly, or be silent wisely.