Many respectable physicists said that they weren't going to stand for this -- partly because it was a debasement of science, but mostly because they didn't get invited to those sort of parties.

There are two things you should remember when dealing with parallel universes. One, they're not really parallel, and two, they're not really universes

He was a dreamer, a thinker, a speculative philosopher... or, as his wife would have it, an idiot.

Life... is like a grapefruit. It's orange and squishy, and has a few pips in it, and some folks have half a one for breakfast.

Come on,” he droned, “I’ve been ordered to take you down to the bridge. Here I am, brain the size of a planet and they ask me to take you down to the bridge. Call that job satisfaction? ’Cos I don’t.” He turned and walked back to the hated door. “Er, excuse me,” said Ford following after him, “which government owns this ship?” Marvin ignored him. “You watch this door,” he muttered, “it’s about to open again. I can tell by the intolerable air of smugness it suddenly generates.

The little waiter's eyebrows wandered about his forehead in confusion.

Anything that thinks logically can be fooled by something else that thinks at least as logically as it does.