Problems are not stop signs, they are guidelines.
By failing to prepare, you are preparing to fail.
What you do today can improve all your tomorrows.
Wherever you are - be all there.
If you've got a talent, protect it.
You never know what motivates you.
Go for it now. The future is promised to no one.
The wise does at once what the fool does at last.
Who seeks shall find.
Expect problems and eat them for breakfast.
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.