Do not weep do not wax indignant. Understand.
Always desire to learn something useful.
If you're going through hell, keep going.
To be a good loser is to learn how to win.
The most effective way to do it, is to do it.
You never know what motivates you.
By failing to prepare, you are preparing to fail.
Expect problems and eat them for breakfast.
Either you run the day or the day runs you.
If you've got a talent, protect it.
I am a teacher, and I am proud of it. At Cornell University I have taught primarily undergraduates, and indeed almost every year since 1966 have taught first-year general chemistry.