Be gentle to all and stern with yourself.
If you can dream it, you can do it.
If you've got a talent, protect it.
It's always too early to quit.
You never know what motivates you.
Know or listen to those who know.
The most effective way to do it, is to do it.
Well done is better than well said.
Without hard work, nothing grows but weeds.
Begin to be now what you will be hereafter.
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.