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.

SpaceX is only 12 years old now. Between now and 2040, the company’s lifespan will have tripled. If we have linear improvement in technology, as opposed to logarithmic, then we should have a significant base on Mars, perhaps with thousands or tens of thousands of people.

It’s time to commit to finding the answer, to search for life beyond Earth. Mankind has a deep need to explore, to learn, to know. We also happen to be sociable creatures. It is important for us to know if we are alone in the dark.

I thought the attractions of being an astronaut were actually, not so much the Moon, but flying in a completely new medium.

Armed attack has a definition in international law. It means sudden, overwhelming, instantaneous ongoing attack.

Where the stakes are the highest, in the war on terror, we cannot possibly succeed without extraordinary international cooperation. Effective international police actions require the highest degree of intelligence sharing, planning and collaborative enforcement.

We will build new ships to carry man forward into the universe, to gain a new foothold on the moon and to prepare for new journeys to the worlds beyond our own.

I think we are at the dawn of a new era in commercial space exploration.

We have always been prepared to negotiate with the U.S. government everything that has to do with bilateral relations, on a basis of the strictest mutual respect for the sovereign rights of each country. We will never try to ask the government of the United States to change its economic and political system.

If we drive down the cost of transportation in space, we can do great things.

I would like to fly in space. Absolutely. That would be cool. I used to just do personally risky things, but now I’ve got kids and responsibilities, so I can’t be my own test pilot. That wouldn’t be a good idea. But I definitely want to fly as soon as it’s a sensible thing to do.

Millions of people were inspired by the Apollo Program. I was five years old when I watched Apollo 11 unfold on television, and without any doubt it was a big contributor to my passions for science, engineering, and exploration.

This most beautiful system of the sun, planets, and comets, could only proceed from the counsel and dominion of an intelligent and powerful Being.

The same thing is to be understood of all bodies, revolved in any orbits. They all endeavour to recede from the centres of their orbits, and were it not for the opposition of a contrary force which restrains them to and detains them in their orbits, which I therefore call Centripetal, would fly off in right lines with a uniform motion.

I would like to die on Mars. Just not on impact.

The fastest manned vehicle in history was Apollo 10. It reached 25,000 mph.

Space has always fascinated me. As a young boy looking up at the stars, I found it impossible to resist thinking what was out there and if I ever would experience space first-hand.

I have wanted to fly into space for many years, but never imagined it would really be feasible.

In order for us to have a future that’s exciting and inspiring, it has to be one where we’re a space-bearing civilization.

For NASA, space is still a high priority.

Perhaps one day I will go into space.

My vision is for a fully reusable rocket transport system between Earth and Mars that is able to re-fuel on Mars – this is very important – so you don’t have to carry the return fuel when you go there.

Some international law specialists compare the invasion of Iraq to the ‚crimes against the peace‘ for which Nazi leaders were indicted at Nuremberg.

It is true that SpaceX is partially a government contractor, but it would be unfair to say that SpaceX is entirely a government contractor.

The Chinese government wants me to say that for many centuries Tibet has been part of China. Even if I make that statement, many people would just laugh. And my statement will not change past history. History is history.

Two kids in their dorm room can’t start anything important in space today. That’s why I want to take the assets I have from Amazon and translate that into the heavy-lifting infrastructure that will allow the next generation to have dynamic entrepreneurialism in space, to build that transportation network.

Nicaragua dealt with the problem of terrorism in exactly the right way. It followed international law and treaty obligations. It collected evidence, brought the evidence to the highest existing tribunal, the International Court of Justice, and received a verdict – which, of course, the U.S. dismissed with contempt.

Once you get into space, you can really unleash a lot of creativity, but the launch itself? I have been through all of the creative ways, and believe me, chemical rockets are the best.

You need to be in the position where it is the cost of the fuel that actually matters and not the cost of building the rocket in the first place.

The boundary between space and the earth is purely arbitrary. And I’ll probably always be interested in this planet – it’s my favorite.

Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind.

The future of humanity is going to bifurcate in two directions: Either it’s going to become multiplanetary, or it’s going to remain confined to one planet and eventually there’s going to be an extinction event.

It’s not going to do any good to land on Mars if we’re stupid.

The only sure bulwark of continuing liberty is a government strong enough to protect the interests of the people, and a people strong enough and well enough informed to maintain its sovereign control over the goverment.

The important achievement of Apollo was demonstrating that humanity is not forever chained to this planet and our visions go rather further than that and our opportunities are unlimited.

I’m trying to get to Mars before everyone else.

I had faith in Israel before it was established, I have in it now. I believe it has a glorious future before it – not just another sovereign nation, but as an embodiment of the great ideals of our civilization.

I think the human race doesn’t have a future if it doesn’t go into space.

If we’re going to have any chance of sending stuff to other star systems, we need to be laser-focused on becoming a multi-planet civilisation.

I have won this lottery. It’s a gigantic lottery, and it’s called Amazon.com. And I’m using my lottery winnings to push us a little further into space.

No one doubts that innocent men, women and children have been the victims of chemical weapons attacks in Syria. And there’s no doubt who is responsible for this heinous use of chemical weapons in Syria: the Syrian regime.

When we build our own colonies, we can do them in near-Earth vicinity, because people are going to want to come back to Earth. Very few people – for a long time, anyway – are going to want to abandon Earth altogether.

Colonies do not cease to be colonies because they are independent.

It’s time for the human race to enter the solar system.

Rendition is just sending people abroad to be tortured.

I don’t know a country in the world that doesn’t have borders and doesn’t want to know who is coming into their country.

I do think that Magna Carta and international law are worth paying some attention to.

Why should man’s first flight to the moon be a matter of national competition? Why should the United States and the Soviet Union, in preparing for such expeditions, become involved in immense duplications of research, construction and expenditure?

I sent American troops to Iraq to make its people free, not to make them American. Iraqis will write their own history and find their own way.

The revolutionary breakthrough will come with rockets that are fully and rapidly reusable. We will never conquer Mars unless we do that. It’ll be too expensive. The American colonies would never have been pioneered if the ships that crossed the ocean hadn’t been reusable.

I think a lot of the American people feel more than a little disappointed that the high-water mark for human exploration was 1969. The dream of human space travel has almost died for a lot of people.

Every country must be absolutely free to adopt the type of economic, political and social system that it considers convenient.

Rockets are cool. There’s no getting around that.

Houston, Tranquillity Base here. The Eagle has landed.

In a very real sense, it will not be one man going to the moon it will be an entire nation. For all of us must work to put him there.

Science fiction, to me, has not only things that wouldn’t happen, but other planets.

You could warm Mars up, over time, with greenhouse gases.

You need to live in a dome initially, but over time you could terraform Mars to look like Earth and eventually walk around outside without anything on… So it’s a fixer-upper of a planet.

The Eagle has landed.

The West Bank is essentially imprisoned.

The moon gravitates towards the earth and by the force of gravity is continually drawn off from a rectilinear motion and retained in its orbit.