I'm going to live forever, or die trying !

Librarians are the secret masters of the world. They control information. Don't ever piss one off.

The day Apollo 11 landed, I knew men would walk on Mars in my lifetime. I'm no longer nearly so sure. The last budget put forward in Canada contained not a penny for Mars.

Sexual intercourse vests no property rights.

A beginning is the end of something, always.

Just as there are laws of Conservation of Matter and Energy, so there are in fact Laws of Conservation of Pain and Joy. Neither can ever be created or destroyed. But one can be converted into the other.

Mankind is divided into two basic sorts: those who find the unknown future threatening ... and those who find it thrilling. The rupture between those two sides has been responsible for most of the bloodshed in history.