King Lear Act I, Scene IV

Fool: "Mark it, 'nuncle;

Have more than thou showest,
Speak less than thou knowest,
Lend less than thou owest,
Ride more than thou goest,
Learn more than thou trowest,
Set less than thou throwest;
Leave thy drink and thy whore, and keep in-a-door,
And thou shalt have more than two tens to a score."