There are more ways than one to measure profits and losses.
Luck is indeed where preparation meets opportunity.
Sometimes you can't pay it back, so you just have to pay it forward.
I'm a professor - there should be some lessons learned - and how you can use the stuff you hear today to enable your dreams or enable the dreams of others. And as you get older you may find that enabling-the-dreams-of-others thing is even more fun.
It's interesting, the secrets you decide to reveal at the end of your life.
Find the best in everybody, no matter how long you have to wait for them to show it