It's always too early to quit.
To be a good loser is to learn how to win.
The most effective way to do it, is to do it.
To know oneself, one should assert oneself.
The wise does at once what the fool does at last.
I can, therefore I am.
Without hard work, nothing grows but weeds.
Be gentle to all and stern with yourself.
If you're going through hell, keep going.
If you've got a talent, protect it.
Aging is an inevitable process. I surely wouldn't want to grow younger. The older you become, the more you know your bank account of knowledge is much richer.