Who Quote? 7

"You're always doing this, reducing it to science. Why can't it be real? Just think of it though, all the people we've lost, our families coming back home. Don't you think it's beautiful?"

All you have to do is remember which character said this quote, and in which episode it was from, and put your answer in the comments. The first person to answer with the correct character and episode wins!

Winner: drwhomad