As we must account for every idle word, so must we account for every idle silence.

He that would live in peace and at ease, must not speak all he knows, nor judge all he sees.

Sloth and Silence are a Fool's Virtues

None preaches better than the ant, and she says nothing

Speak and speed: the close mouth catches no flies.

Think of these things, whence you came, where you are going, and to whom you must account.