William Shakespeare (c. 23 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's national poet and the "Bard of Avon" (or simply "the Bard")....
Upon the heat and flame of thy distemper sprinkle cool patience.
Patience is sottish, and impatience does become a dog that's mad.
First keep the peace within yourself, then you can also bring peace to others.