Good teachers cost a lot; but, poor teachers cost a lot more.
The lecturer who is full of his subject is usually very slow in emptying himself.
A creature that never cries over spilt milk: a cat.
Hindsight is good, foresight is better; but second sight is best of all.
A girl never cares who casts the first stone at her -- as long as it's a diamond
Success is the good fortune that comes from aspiration, desperation, perspiration,and inspiration.