I just felt like I had run out of steam. I just felt like it was my time.

As a kid, I played my share of football in the street or in a vacant lot. When we were playing in the street, it was more touch football, so we didn't hit each other into cars.

Happiness does not come from football awards. It's terrible to correlate happiness with football. Happiness comes from a good job, being able to feed your wife and kids. I don't dream football, I dream the American dream - two cars in a garage, be a happy father.

Too often we are scared. Scared of what we might not be able to do. Scared of what people might think if we tried. We let fears stand in the way of our hopes. We say no when we want to say yes. We sit quietly when we want to scream. And we shout with the others, When we should keep our mouths shut. Why? After all, we do only go around once. There's really no time to be afraid. JUST DO IT.

It's hard to win in the NFL. You have to maintain a very delicate balance putting together the right team to be able to win and have any amount of success.

I sat behind Thurman Thomas for my first couple of years, then my first year starting I won the Heisman. After I won the Heisman, that’s when things changed as far as going to the NFL.

I'm from Kansas, so there were a lot of vacant lots and open fields to tackle each other in so we could avoid tackling each other on the street. But running on the street and trying not to get taken down on the concrete, that will make you fast, that's for sure.