Have more than thou showest; Speak less than thou knowest. – Fool, King Lear
He who knows does not speak. He who speaks does not know. – Lao-Tzu
Be sincere. Be brief. Be seated. – Franklin Roosevelt
Let every man be swift to hear, slow to speak, slow to wrath. – St. James 1:19
Much speech is one thing, well-timed speech another. – Sopocles, Oedipus at Colonus
He knew the precise psychological moment when to say nothing. – Oscar Wilde
Speak, that my torturing doubts their end may know. – Wordsworth
Remember what is unbecoming to do is also unbecoming to speak of. – Socrates
I was quiet, but I was not blind. – Jane Austen
History will be kind to me for I intend to write it. – Winston Churchill
Of course it’s the same old story. The truth usually is the same old story. – Margaret Thatcher