I love your majesty according to my bond; nor more nor less

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.

It's good advice. And every 'est' word is considered a mistake by spellcheck.