To be a good loser is to learn how to win.
Leap, and the net will appear.
It's always too early to quit.
After a storm comes a calm.
If you're going through hell, keep going.
Do not weep do not wax indignant. Understand.
Who seeks shall find.
I can, therefore I am.
Always desire to learn something useful.
If you've got a talent, protect it.
I believe you'll develop speed via strength work which includes hill running, either repeats, or running hilly courses as the Kenyans do on a steady basis.