Science and religion are not antagonists. On the contrary, they are sisters. While science tries to learn more about the creation, religion tries to better understand the Creator. While through science man tries to harness the forces of nature around him, through religion he tries to harness the force of nature within him.

With our present knowledge, we can respond to the challenge of stellar space flight solely with intellectual concepts and purely hypothetical analysis. Hardware solutions are still entirely beyond our reach and far, far away.

It was very successful, but it fell on the wrong planet.

Conquering the universe one has to solve two problems: gravity and red tape. We could have mastered gravity.

It will free man from the remaining chains, the chains of gravity which still tie him to this planet.

I only hope that we shall not wait to adopt the program until after our astronomers have reported a new and unsuspected asteroid moving across their fields of vision with menacing speed. At that point it will be too late!

A good engineer gets stale very fast if he doesn't keep his hands dirty.