The lecturer who is full of his subject is usually very slow in emptying himself.
A hamburger by any other name costs twice as much.
The best way to spoil a good story is by sticking to the facts.
Hindsight is good, foresight is better; but second sight is best of all.
The best time to give advice to your children is while they're still young enough to believe you know what you're talking about.
If you can't bear to have your face stepped on, don't try to climb the ladder of success.