If you would keep your secret from an enemy, tell it not to a friend.
If you would keep your secret ...
Quotes from the same author
One today is worth two tomorrows.
The doorstep to the temple of wisdom is a knowledge of our own ignorance.
Watch the little things; a small leak will sink a great ship.
Honesty is the best policy.
Dost thou love life? Then do not squander time, for that is the stuff life is made of.