It's always too early to quit.
Leap, and the net will appear.
Who seeks shall find.
If you think you can do it, you can.
Expect problems and eat them for breakfast.
Go for it now. The future is promised to no one.
If you're going through hell, keep going.
I can, therefore I am.
Begin to be now what you will be hereafter.
You never know what motivates you.
The most important thing you learn as a sports photographer is anticipation - not where the action is taking place, but where it's going to take place. Not where the subject is now, but where they're going to be.