It's always too early to quit.
I can, therefore I am.
Things do not happen. Things are made to happen.
Be thine own palace, or the world's thy jail.
The dog that trots about finds a bone.
Well done is better than well said.
Do not weep do not wax indignant. Understand.
The secret of getting ahead is getting started.
Expect problems and eat them for breakfast.
Only the educated are free.
You can only maintain your interest if you're travelling more in ignorance than knowledge.