“Our passionate preoccupation with the sky, the stars, and a God somewhere in outer space is a homing impulse. We are drawn back to where we came from.”
“The moon and other celestial bodies should be free for exploration and use by all countries. No country should be permitted to advance a claim of sovereignty.”
“Man is an artifact designed for space travel. He is not designed to remain in his present biologic state any more than a tadpole is designed to remain a tadpole.”
“No matter how vast, how total, the failure of man here on earth, the work of man will be resumed elsewhere. War leaders talk of resuming operations on this front and that, but man's front embraces the whole universe.”
“Oh! I have slipped the surly bonds of earth, and danced the skies on laughter-silvered wings and while with silent lifting mind I've trod the high, untrespassed sanctity of space, put out my hand and touched the face of God.”
“The question that will decide our destiny is not whether we shall expand into space. It is: shall we be one species or a million? A million species will not exhaust the ecological niches that are awaiting the arrival of intelligence.”
“It is marvelous indeed to watch on television the rings of Saturn close; and to speculate on what we may yet find at galaxy's edge. But in the process, we have lost the human element; not to mention the high hope of those quaint days when flight would create ''one world.'' Instead of one world, we have ''star wars,'' and a future in which dumb dented human toys will drift mindlessly about the cosmos long after our small planet's dead.”