You never know what motivates you.
Without hard work, nothing grows but weeds.
Who seeks shall find.
The wise does at once what the fool does at last.
Go for it now. The future is promised to no one.
Either you run the day or the day runs you.
Only the educated are free.
It's always too early to quit.
To know oneself, one should assert oneself.
Problems are not stop signs, they are guidelines.
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.