Our greatest glory is not in never falling but in rising every time we fall.
-Confucius

The best way out is always through.
-Robert Frost

The only way of finding the limits of the possible is by going beyond them into the impossible.
-Arthur C. Clarke

Constant dripping hollows out a stone.
-Lucretius

A wise man will make more opportunities than he finds.
-Francis Bacon

If opportunity doesn’t knock, build a door.
-Milton Berle

If you don’t know where you are going, you’ll end up some place else.
-Yogi Berra

Many an opportunity is lost because a man is out looking for four-leaf clovers.
-Anonymous

You can’t build a reputation on what you’re going to do.
-Henry Ford

and one more…

Winning isn’t everything, but wanting to win is.
-Vince Lombardi