"I would have-a few days ago. I would have leapt at the opportunity. First contact, the culmination of all my work. But I've realized something. I threw myself into my work after we... went our separate ways. I was obsessed with my work because it was all I had left. I've been looking for something, and it has nothing to do with aliens or signals on radio telescopes."
"I know what this signal represents to you, Mary, how much you've sacrificed over the years for your career. If you ask me what my gut instinct is, I just don't believe a friendly species would beam a retrovirus into space. I know we're out of options, but I think we should wait."