Well done is better than well said.
Be gentle to all and stern with yourself.
Without hard work, nothing grows but weeds.
Do not weep do not wax indignant. Understand.
If you can dream it, you can do it.
Who seeks shall find.
If you've got a talent, protect it.
Wherever you are - be all there.
Expect problems and eat them for breakfast.
Be thine own palace, or the world's thy jail.
I'm not a huge fan of improv theater or improv sports or whatever, because it still just looks like a tool. It looks like a technique to me.