Be gentle to all and stern with yourself.
The secret of getting ahead is getting started.
Things do not happen. Things are made to happen.
To know oneself, one should assert oneself.
Problems are not stop signs, they are guidelines.
It's always too early to quit.
You never know what motivates you.
The dog that trots about finds a bone.
Expect problems and eat them for breakfast.
If you've got a talent, protect it.
As my dad said, you have an obligation to leave the world better than how you found it. And he also reminded us to be givers in this life, and not takers.