This was asked by someone on a newsgroup seven years ago and never answered--but I thought I'd give it a try here: what is the source of the quote that Kennedy and Boyd utter in the brain towards the end of the movie: "Yet all the suns that light the corridors of the universe shine dim before the blazing of a single thought, proclaiming an incandescent glory: The myriad mind of man."?
I couldn't find it via A9. It is possible that that quote was made up for the movie. Interestingly enough, Isaac Asimov uses a different quote altogether in his novelization.
[Duval] was silent for a moment and then quoted:
"...where the statue stood
Of Newton with his prism and silent face
The marble index of a mind..."
Grant cut in, with an awed whisper:
"...forever
Voyaging through strange seas of thought, alone."
Both were silent a minute and then Grant said, "Do you think Wordsworth ever thought of this, or could have, when he spoke of 'strange seas of thought'? This is the literal sea of thought, isn't it? And strange it is, too."
Cora said, "I didn't think of you as the poetic type, Grant."
Grant nodded, "All muscle, and no mind. That's me."