It's always too early to quit.
Wherever you are - be all there.
The wise does at once what the fool does at last.
Be gentle to all and stern with yourself.
Know or listen to those who know.
Things do not happen. Things are made to happen.
To be a good loser is to learn how to win.
Begin to be now what you will be hereafter.
The most effective way to do it, is to do it.
If you think you can do it, you can.
It's too bad that one has to conceive of sports as being the only arena where risks are, for all of life is risk exercise. That's the only way to live more freely, and more interestingly.