I believe that present day civilized man suffers from insufficient discharge of his aggressive drive.

I grew up in the large house and the larger garden of my parents in Altenberg. They were supremely tolerant of my inordinate love for animals.

Evil, by definition, is that which endangers the good, and the good is what we perceive as a value.

We do not take humor seriously enough.

Cyber war takes place largely in secret, unknown to the general public on both sides.

When you've fought and fought to keep positive and to keep creative even though there was not a space to be creative, well, you show me any human who is not angry after 60 years of that.

After the loss of Columbia a couple of years ago, I think we were reminded of the risk. All of us, though, have always known that the Space Shuttle is a very risky vehicle, much more risky than even flying airplanes in combat.

There are very important and practical issues raised by following this alternative route which says, let's look to material conditions, to the systems of production, to the needs that human beings have, and to competing alternative solutions to the satisfaction of those needs.