I am discounting the reports of UFOs. Why would they appear only to cranks and weirdos?
Stephen HawkingMaybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.
Stephen HawkingAlthough quantum mechanics has been around for nearly 70 years, it is still not generally understood or appreciated, even by those that use it to do calculations.
Stephen HawkingIt often happens that I have an idea, but then I try to fill in the intermediate steps and find they don't work, so I have to give it up.
Stephen Hawking