“The logistic requirements for a large, elaborate mission to Mars are no greater that those for a minor military operation extending over a limited theatre of war.”

The best computer is a man, and it’s the only one that can be mass-produced by unskilled labor.

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

Looking back, nothing seems so simple than a utopian vision realised.

I find it as difficult to understand a scientist who does not acknowledge the presence of a superior rationality behind the existence of the universe as it is to comprehend a theologian who would deny the advances of science.

I believe in an immortal soul. Science has proved that nothing disintegrates into nothingness. Life and soul, therefore, cannot disintegrate into nothingness, and so are immortal.

The greatest gain from space travel consists in the extension of our knowledge. In a hundred years this newly won knowledge will pay huge and unexpected dividends.

If we were to start today on an organized and well-supported space program I believe a practical passenger rocket can be built and tested within ten years.

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

I believe that the time has arrived for medical investigation of the problems of manned rocket flight, for it will not be the engineering problems but rather the limits of the human frame that will make the final decision as to whether manned space flight will eventually become a reality.

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.

My friends they were dancing here in the streets of Huntsville when our first satellite orbited the Earth. They were dancing again when the first Americans landed on the Moon. I’d like to ask you, don’t hang up your dancing slippers.

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!

One good test is worth a thousand expert opinions.

By the year 2000 we will undoubtedly have a sizable operation on the Moon, we will have achieved a manned Mars landing and it’s entirely possible we will have flown with men to the outer planets.

If we continue at this leisurly pace, we will have to pass Russian customs when we land on the moon.

Basic research is what I am doing when I don’t know what I am doing.

For me, a sexy man has three very important qualities: a great sense of humour, intelligence, and loyalty.

When one guy is doing good, it makes all the others want to achieve greatness.

This stuff [marijuana] keeps me sane and happy. I’d say it’s a great drug – but obviously it’s not very healthy.

Everybody has different taste and everyone’s favourite song is different and that’s great.

I discovered I scream the same way whether I’m about to be devoured by a great white shark or if a piece of seaweed touches my foot.

I’ve had a great life following my faith and my instincts.

I feel like ‘Next To Me’ is a great introduction because it’s a simple song that has a simple message for me. I wanted to introduce something that lyrically I’m proud of and introduces me both as an artist and as a writer.

Greatness is not a measure of how great you are but how great others came to be because of you.