Pandora Hearts quote

I actually heard this quote in other animes. Maybe it was KHR or something but it was something like this:
   "If you don't care about your life, you're not worthy to protect others with it."
   I like the sound of this quote because if you are really willing to die without thinking twice about your own life, then what you're doing is not right. Sacrificing yourself for someone else will only hurt other people. And so, I wish I lived in an anime. Their values are better than those in the real world where people fight for their own greed and no one really cares. -___- Actually, in anime, it's sometimes like that too because the enemies are greedy for power. :O

   Sudoku is getting REALLY hard. OMG