"Most people never run far enough on their first wind to find out they've got a second."
"One may go a long way
after one is tired."
"Keep on going, and the chances are that you will stumble on something, perhaps when you are least expecting it. I never heard of anyone ever stumbling on something sitting down."
Charles F. Kettering
"I may not be there yet, but I'm closer than I was yesterday."
"There is no telling how many miles you will have to run while chasing a dream."