Know or listen to those who know.
Only the educated are free.
Wherever you are - be all there.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
The dog that trots about finds a bone.
It's always too early to quit.
Be gentle to all and stern with yourself.
To be a good loser is to learn how to win.
Do not weep do not wax indignant. Understand.
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.