There is a single light of science, and to brighten it anywhere is to brighten it everywhere. - Isaac Asimov

He looked at Retief. "Uh ... got time for a drink?" "I shouldn't drink during office hours," Retief said. He rose. "So I'll take the rest of the day off.

Ah, the future good!" Leebig's eyes glowed with passion and he seemed to grow less conscious of his listener and correspondingly more talkative. "A simple concept, you think. How many human beings are willing to accept a trifling inconvenience for the sake of a large future good?

Now why should there be a special word for a man with dark skin? There was no special word for a man with blue eyes, or large ears, or curly hair.