Problems are not stop signs, they are guidelines.
Who seeks shall find.
If you can dream it, you can do it.
Be kind whenever possible. It is always possible.
To be a good loser is to learn how to win.
Either you run the day or the day runs you.
The wise does at once what the fool does at last.
Leap, and the net will appear.
You never know what motivates you.
It's always too early to quit.
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.