Hang in there, retirement is only thirty years away!

There are too many accidents that can befall life on a single planet.

For millions of years, mankind lived just like the animals. Then something happened which unleashed the power of our imagination. We learned to talk and we learned to listen.

Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.

One does not have to appeal to God to set the initial conditions for the creation of the universe, but if one does He would have to act through the laws of physics.

It is all right to make mistakes; nothing is perfect because with perfection, we would not exist.

It is said that there's no such thing as a free lunch. But the universe is the ultimate free lunch.