Know or listen to those who know.
Things do not happen. Things are made to happen.
The secret of getting ahead is getting started.
Expect problems and eat them for breakfast.
Leap, and the net will appear.
The dog that trots about finds a bone.
It's always too early to quit.
If you think you can do it, you can.
Wherever you are - be all there.
Do not weep do not wax indignant. Understand.
I'm someone who's done the opposite of whatever the received wisdom is, to keep your career going into your 50s.