Narrator: For centuries the histories of earthbound men have been filled with conflicts. When in the not-to-distant future, the descendents of these men leave Earth and begin to conquer space, will they carry these age-old hostilities with them? Or will this great scientific step at last teach Man to stand shoulder-to-should, united when confronting with... the unknown.
Major Ralph Devers: Now, Mac, let's get down to something serious.
McCauley: Such as?
Major Ralph Devers: Clothes. I haven't a thing to wear to the Russian dinner tonight.
McCauley: Oh, oh. Well, I think your spacesuit will be adequate for street wear, and your coveralls passable for inside. And, uh, you may be excused, too.
McCauley: Yeah, but do you realize if I hadn't been so particular, we'd be three days out on our trip to Mars right now? Three days ahead of the Russians.
Major Ralph Devers: The responsibility of command is producing some last-minute doubts, I'd say.
Col. Tolchek: The many modifications and last-minute changes, I take it they all worked well?
McCauley: As far as we know.
Col. Tolchek: We felt the need for haste.
McCauley: Um-hmm. So did we.
Col. Tolchek: We made no modifications. I am happy you did.