It's always too early to quit.
After a storm comes a calm.
What you do today can improve all your tomorrows.
To know oneself, one should assert oneself.
Know or listen to those who know.
If you're going through hell, keep going.
To be a good loser is to learn how to win.
Expect problems and eat them for breakfast.
If you can dream it, you can do it.
The secret of getting ahead is getting started.
Don't take too much comfort in the fact that you're successful today because tomorrow could bring failure. There's no surety in life.