William Shakespeare coined a number of phrases that we still use today, including (in varying forms) the following fromTwelfth Night.
“If music be the food of love, play on.”
-Duke Orsino 1.1.1
“My purpose is, indeed a horse of that colour.”
-Maria 2.3.148
“I am all the daughters of my father’s house and all the brothers too.”
-Viola 2.4.118
“Still you keep o’ th’ windy side of law; good.”
-Fabian 2.4.147
“Be not afraid of greatness. Some are born great, some achieve greatness, and some have greatness thrust upon ’em.”
-Malvolio 2.5.128
“Why, this is very midsummer madness.”
-Olivia 3.4.50