Eyes says, tongue only talks.

I don't speak very well, I work very well.

Speaking can persuade an individual, eloquence can persuade a crowd.

If you think before you speak you will speak well, if you think twice you will speak very well.

If you can't keep your mouth shy and silent then keep your words soft and sweet.

An over-eating mouth tortures whole body and over-speaking mouth tortures everybody.

The more you say, the more likely you are to say something silly.