humanity could share a common insanity and be immersed in a common illusion while living in a common chaos. - Isaac Asimov

He had no credits to continue his work — no credits to locate others like Wanda, no credits to pay his workers on the Psychohistory Project at Streeling, no credits to set up his all-important Encyclopedia Project at the Galactic Library. Now what?

Actions such as his could come only from a robot, or from a very honorable and decent human being. But you see, you can't differentiate between a robot and the very best of humans.

It's a poor atom blaster that won't point both ways.