If you're going through hell, keep going.
Leap, and the net will appear.
By failing to prepare, you are preparing to fail.
After a storm comes a calm.
To be a good loser is to learn how to win.
Either you run the day or the day runs you.
It's always too early to quit.
Wherever you are - be all there.
Go for it now. The future is promised to no one.
Begin to be now what you will be hereafter.
I'm someone who's done the opposite of whatever the received wisdom is, to keep your career going into your 50s.