Always desire to learn something useful.
Be thine own palace, or the world's thy jail.
Only the educated are free.
The most effective way to do it, is to do it.
Never complain and never explain.
I can, therefore I am.
The secret of getting ahead is getting started.
By failing to prepare, you are preparing to fail.
The dog that trots about finds a bone.
Problems are not stop signs, they are guidelines.
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.