Trying my hardest to think of someone with more drive and only one pops to mind and that's Cristiano Ronaldo (maybe Federer). Brady just might be the most driven athlete ever, like in any sport, anywhere. Imagine being a 40 year old athlete after already accomplishing becoming the greatest in your field and achieving every team goal and more, yet STILL getting up every morning trying to actually get better as opposed to what most greats did (Kobe, Jordan, Manning etc.) who just let their body dictate when it was all said and done. For the MVP level at which he is still playing at, the superlatives are running thin to continue describing him. You can't beat father time but Brady is taking that man to double overtime for sure.