Be kind whenever possible. It is always possible.
If you've got a talent, protect it.
Be thine own palace, or the world's thy jail.
Only the educated are free.
Who seeks shall find.
The dog that trots about finds a bone.
Do not weep do not wax indignant. Understand.
Go for it now. The future is promised to no one.
Always desire to learn something useful.
Expect problems and eat them for breakfast.
I'm someone who's done the opposite of whatever the received wisdom is, to keep your career going into your 50s.