Without hard work, nothing grows but weeds.
Do not weep do not wax indignant. Understand.
I can, therefore I am.
Be gentle to all and stern with yourself.
What you do today can improve all your tomorrows.
After a storm comes a calm.
The secret of getting ahead is getting started.
Always desire to learn something useful.
If you've got a talent, protect it.
Things do not happen. Things are made to happen.
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.