What the world needs is a small, compact, flexible fusion technology that could make electricity where and when it is needed. The existing fusion program is leading to a huge source of centralized power, at a price that nobody except a government can afford.

If we want to go to space with humans, that's for fun not for science. Human adventures in space are just sporting events.

If you start out with a tragic view of life, then anything since is just a bonus.

It is better to be wrong than to be vague.

No matter how far we go into the future, there will always be new things happening, new information coming in, new worlds to explore, a constantly expanding domain of life, consciousness, and memory.

The great advances in science usually result from new tools rather than from new doctrines.

The average ground temperature of the Earth is impossible to measure since most of the Earth is ocean...So this average ground temperature is a fiction.