Well done is better than well said.
The dog that trots about finds a bone.
Do not weep do not wax indignant. Understand.
Expect problems and eat them for breakfast.
It's always too early to quit.
Know or listen to those who know.
If you can dream it, you can do it.
By failing to prepare, you are preparing to fail.
What you do today can improve all your tomorrows.
The secret of getting ahead is getting started.
I'm someone who's done the opposite of whatever the received wisdom is, to keep your career going into your 50s.