If we can avoid disaster for the next two centuries, our species should be safe as we spread into space. If we are the only intellegent beings in the galaxy we should make sure we survive and continue. . . . Our only chance of long-term survival is not to remain inward looking on planet Earth but to spread out into space. We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space.

Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.

I think the next century will be the century of complexity.

Or in other words, why does disorder increase in the same direction of time as that in which the universe expands?

We could call order by the name of God, but it would be an impersonal God. There's not much personal about the laws of physics.

The human capacity for guilt is such that people can always find ways to blame themselves

The idea of 10 dimensions might sound exciting, but they would cause real problems if you forget where you parked your car.