If you're going through hell, keep going.
Be kind whenever possible. It is always possible.
Know or listen to those who know.
To be a good loser is to learn how to win.
The secret of getting ahead is getting started.
Things do not happen. Things are made to happen.
If you think you can do it, you can.
Who seeks shall find.
After a storm comes a calm.
If you've got a talent, protect it.
The answer to old age is to keep one's mind busy and to go on with one's life as if it were interminable. I always admired Chekhov for building a new house when he was dying of tuberculosis.