The Homunculi may have started the war, but we were the ones who carried it out.
Humankind cannot gain something without first giving something in return. To obtain, something of equal value must be lost. This is Alchemy's First Law of Equivalent Exchange. In those days, we really believed that to be the world's one, and only, truth.
But even so, we're not devils, let alone gods. We're human. We're human!
There are many questions in this world that have no answers.
Told you, Rose. Get too close to the sun, and you'll burn." -Edward Elric
Stand up and walk. Keep moving forward. You've got two good legs. So get up and use them. You're strong enough to make your own path.