"In this case, I realize that, unlike when I was 22 years old, I realize now that football will not go on forever, it is a small part of your life"

In this quote, previous NFL quarterback Brett Favre reflects on his point of view on football as he has aged. He acknowledges that when he was 22 years old, he didn't completely understand the fleeting nature of football. However, now with more life experience, he acknowledges that football is not an irreversible fixture in one's life. It is simply a small part of a bigger journey. This awareness likely comes from Favre's own personal experience of retiring from the sport and proceeding to other elements of his life. It works as a tip to value and take advantage of the present moment, as things can alter and evolve gradually.