Why fight?
Because lose is impossible. You will win In any case. Battle is favourable to all.
Why try being the best?
Because if you not having tried to become the best you would not understand it. But you already tried to become the best and consequently have realized it.
Why sacrifice?
It is not vain even because it GOES! it is fine. Is not it?
Колосок_из_Столицы, is there any more pleasure giving than pain? Battle brings death to both competitors. If one doesn't see anyone better than him, he's merely blind. So what's the reason?..