One of the basic rules of the universe is that nothing is perfect. Perfection simply doesn't exist.....Without imperfection, neither you nor I would exist.

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

People who boast about their I.Q. are losers.

I don't think the human race will survive the next thousand years, unless we spread into space.

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.

I'm not afraid of death, but I'm in no hurry to die.

Although I cannot move and I have to speak through a computer, in my mind I am free.

If time travel is possible, where are the tourists from the future?

The thing about smart people is that they seem like crazy people to dumb people.

The universe doesn't allow perfection.

For flavor, instant sex will never supercede the stuff you have to peel and cook.

Government's first duty is to protect the people, not run their lives.

Children are likely to live up to what you believe of them.

If you want a guarantee, buy a toaster.

Action is the foundational key to all success.

I find hope in the darkest of days, and focus in the brightest. I do not judge the universe.

I don't know how to not have fun. I'm dying and I'm having fun, and I'm going to keep having fun every day I've got left.

I only drink champagne on two occasions, when I am in love and when I am not.

“Compassion for animals is intimately associated with goodness of character, and it may be confidently asserted that he who is cruel to animals cannot be a good man.