I don’t know how real any of those quotes are, but combat is stressful. (Duh!) Physical fitness supports endurance and mental acuity. Fat sedentary officers have no appreciation of the tasks they are undertaking or ordering others to undertake.
I’m all for the goal of being physically fit, but I don’t want to lose the best ones over this. Patton seemed to be in good shape, but MacArthur could’ve lost some pounds.