David Belle — French Actor born on April 29, 1973,

David Belle is a French actor, film choreographer and stunt coordinator. He is deemed the founder or leading pioneer of the physical discipline parkour, coining it based on his training and the teachings from his father Raymond Belle. Belle came to fame via his parkour videos and film appearances, such as District 13, District 13: Ultimatum, which were written and produced by Luc Besson, and the American remake Brick Mansions. Belle has also consulted on the making of Babylon A.D., Prince of Persia, Colombiana and The Family... (wikipedia)

Sometimes you have to stop something to really measure the passion that you have, and either you feel like moving, or you don't, and then maybe it's time to stop.
The evolution of Parkour sort of happens with time and age as you change, and the body has a certain memory of Parkour. There is a sort of thing that remains intrinsic, but then the choreography will adapt to whatever the necessity of each particular film needs.
We shouldn't force ourselves to do something that really is just painful to us. If there is a discrepancy between what we are doing or putting our bodies through and then what our minds are telling us, you really have to look at yourself, and the most essential part of it is the pleasure aspect.
Parkour is really a practice of getting to know yourself, what you're able to do, what are your limits. As you train, you start knowing what you can do.
The Parkour is with me, and it will continue to be with me. It is something that I love, and it's intrinsic to me.