If one can stick to the training throughout the many long years then will power is no longer a problem. It's raining? That doesn't matter. I am tired? That's besides the point. It's simply that I just have to.
Wrinkles should merely indicate where smiles have been.
Anyone who stops learning is old whether at twenty or eighty. Anyone who...
Age is an issue of mind over matter. If you don't mind it doesn't matter.