Go for it now. The future is promised to no one.
Who seeks shall find.
Leap, and the net will appear.
To be a good loser is to learn how to win.
Know or listen to those who know.
The secret of getting ahead is getting started.
After a storm comes a calm.
By failing to prepare, you are preparing to fail.
The dog that trots about finds a bone.
The most effective way to do it, is to do 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.