Do not weep do not wax indignant. Understand.
It's always too early to quit.
Never complain and never explain.
Always desire to learn something useful.
Be thine own palace, or the world's thy jail.
If you can dream it, you can do it.
The dog that trots about finds a bone.
By failing to prepare, you are preparing to fail.
Go for it now. The future is promised to no one.
Wherever you are - be all there.
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.