What you do today can improve all your tomorrows.
If you think you can do it, you can.
Go for it now. The future is promised to no one.
The secret of getting ahead is getting started.
Always desire to learn something useful.
Either you run the day or the day runs you.
It's always too early to quit.
After a storm comes a calm.
You never know what motivates you.
Without hard work, nothing grows but weeds.
I'm someone who's done the opposite of whatever the received wisdom is, to keep your career going into your 50s.