Leap, and the net will appear.
Know or listen to those who know.
Wherever you are - be all there.
You never know what motivates you.
What you do today can improve all your tomorrows.
Be gentle to all and stern with yourself.
The wise does at once what the fool does at last.
To know oneself, one should assert oneself.
To be a good loser is to learn how to win.
By failing to prepare, you are preparing to fail.
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.