Is it alright to believe in the future where everyone can live in happiness?

Is it alright to believe in the future where everyone can live in happiness?

So that the new generation that will be born can enjoy happiness. To pay the cost we will have to shoulder corpses and cross a river of blood (Riza Hawkeye -- Fullmetal Alchemist)

I want you by my side. Forever. (Full Metal Alchemist)

You've certainly mellowed out... you used to be fun, full of life and emotion. Lust, Greed, Sloth, Gluttony, Envy, Wrath, and Pride. Of course, excessive want will destroy anyone, but those same desires are necessary to understand what it means to be human. Why did you rid yourself of them?

A different species a different set of values a world completely unlike your own. There is a feeling you can only get when you meet the unknown and open your mind. - Nakajima (Gin no Saji)

Riza: Without his Alchemy he's just... Jean: A little brat who swears a lot Maes: An arrogant pipsqueak Roy: Useless. Just useless Alphonse: Sorry big brother, I don't know how to add to that... Ed *starts to cry*: YOU'RE ALL PICKING ON ME!!!