Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza.

So many of the things I invented I honestly did for fun, out of some perverse game of whether or not they’d work, whether people would use them. I mean, it was like setting up a guillotine in the public square. You don’t expect a thousand people to line up to put their heads in it

among the most fascinating of human social or economic inventions.

Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous.

An amazing invention - but who would ever want to use one?

Where a new invention promises to be useful, it ought to be tried