It is a great thing to know the season for speech and the season for silence.

You can tell the character of every man when you see how he receives praise.

—Seneca

Be not too hasty either with praise or blame; speak always as though you were giving evidence before the judgement-seat of the Gods.

—Seneca

Most powerful is he who has himself in his own power.

—Seneca

Be silent as to services you have rendered, but speak of favours you have received.

—Seneca

Nothing is as certain as that the vices of leisure are gotten rid of by being busy.

—Seneca

The cruelest lies are often told in silence.

—Robert Louis Stevenson

It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.

—Pythagoras

I have often regretted my speech, never my silence.

—Publilius Syrus

Not merely an absence of noise, Real Silence begins when a reasonable being withdraws from the noise in order to find peace and order in his inner sanctuary.

—Peter Minard

Silence is golden when you can't think of a good answer.

—Muhammad Ali