Humanity will destroy itself, body and soul, before it will learn a simple lesson.

You make your own choices, Kira, and you can’t let anyone ever take that away from you.

Feelings aren't good or bad. They're just weak or strong. Love, for example, is weak: someone loves you, you love them back, you're happy for a while, and then it fades away. But if one of those lovers betrays the other, then you have a real emotion - then you have something powerful, something that leaves a mark you'll never be rid of. Betrayal is the most delicious of all, but it takes a while to set it up, and fear can be just as intense if you know what you're doing.

I need a sample of your blood,' said Kira. Marcus raised an eyebrow. 'I didn't know we'd reached that stage of our relationship.

When our ancestors were attacked at Pearl Harbor, they called it a day that would live in infamy. The day the Partials attacked us with the RM Virus will not live in anything, because there will be none of us left to remember it." -President David R. Cregan, March 21, 2065, in a press conference at the White House. Three hours later he hanged himself.

I wanted everything to stay the same, but you wanted things to be better, it's just...going to be a whole lot worse for awhile first. And I think I knew that, and I was scared of it." - Marcus

Each life has a different purpose, and some people can find their purpose more easily than others. The key, the most important thing you can ever know, is that whatever your purpose is, that's not your only choice" "No matter why you're here, no matter why any of us are here, you're never tied down to fate. You're never locked in. You make your own choices, Kira, and you can't let anyone ever take that away from you.