"The results of physical fitness are the direct opposites of those that follow from unfitness. The fit are healthy and strong, and many as a consequence save themselves decorously on the battle-field and escape all dangers of war; many help friends and do good to their country and for this they earn gratitude, glory and honor that leads to a better life and provide their children a better means of achieving a livelihood."

- Socrates

I mean....isn't that what it's all about?

Pay the price and sacrifice - for the reward is far greater than any cost.