“All one can really leave one's children is what's inside their heads. Education, in other words, and not earthly possessions, is the ultimate legacy, the only thing that cannot be taken away.”

“In future utopia will need to hurry to keep up with reality.”

“I'm convinced that before the year 2000 is over, the first child will have been born on the moon.”

“It [the rocket] will free man from his remaining chains, the chains of gravity which still tie him to this planet. It will open to him the gates of heaven.”

“The rocket worked perfectly except for landing on the wrong planet.”

“There is just one thing I can promise you about the outer-space program - your tax-dollar will go further.”

“He was a man take him for all in all I shall not look upon his like again.”

“I am a member of the rabble in good standing.”

“The strongest human instinct is to impart information the second strongest is to resist it.”

“Huius (sapientis) opus unum est de divinis humanisque verum invenire; ab hac numquam recedit religio, pietas, iustitia ...”