It's always too early to quit.
Who seeks shall find.
Know or listen to those who know.
Always desire to learn something useful.
Well done is better than well said.
Leap, and the net will appear.
Things do not happen. Things are made to happen.
To be a good loser is to learn how to win.
The secret of getting ahead is getting started.
The dog that trots about finds a bone.
It is the nature of truth in general, as of some ores in particular, to be richest when most superficial.