But a machine that was powerful enough to accelerate particles to the grand unification energy would have to be as big as the Solar System - and would be unlikely to be funded in the present economic climate.

What was God doing before the divine creation? Was he preparing hell for people who asked such questions?

The life we have on Earth must have spontaneously generated itself. It must therefore be possible for life to generate spontaneously elsewhere in the universe.

If everything in the universe depends upon everything else in a fundamental way, it might be impossible to get close to a full solution by investigating parts of the problem in isolation.

When something is made idiot proof, they will just make better idiots.

When I hear of Schrödinger's cat, I reach for my pistol.

The development of full artificial intelligence could spell the end of the human race.