There is a fundamental difference between religion, which is based on authority, [and] science, which is based on observation and reason. Science will win because it works.

Science is beautiful when it makes simple explanations of phenomena or connections between different observations.

Chaos, when left alone, tends to multiply.

Disability need not be an obstacle to success.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.

I think the universe was spontaneously created out of nothing, according to the laws of science. It has no beginning and no end.

I like physics, but I love cartoons.