To say that the universe exists is silly, because it says that the universe is one of the things in the universe. So there's something wrong with questions like, "What caused the Universe to exist?"

No computer has ever been designed that is ever aware of what it's doing; but most of the time, we aren't either.

Within 10 years computers won't even keep us as pets.

What would a Martian visitor think to see a human being laugh? It must look truly horrible: the sight of furious gestures, flailing limbs, and thorax heaving in frenzied contortions.

You don't understand anything until you learn it more than one way.

Experience has shown that science frequently develops most fruitfully once we learn to examine the things that seem the simplest, instead of those that seem the most mysterious.

Anyone could learn Lisp in one day, except that if they already knew Fortran, it would take three days.