The Men of Earth came to Mars. They came because they were afraid or unafraid, because they were happy or unhappy, because they felt like Pilgrims or did not feel like Pilgrims. There was a reason for each man. They were leaving bad wives or bad towns; they were coming to find something or leave something or get something, to dig up something or bury something or leave something alone. They were coming with small dreams or large dreams or none at all...it was not unusual that the first men were few. The numbers grew steadily in proportion to the census of Earth Men already on Mars. There was comfort in numbers. But the first Lonely Ones had to stand by themselves...

Because I never have any definite destination. This ship is not for going to places, but for getting away from them. When I stop at a port, it's only for the sheer pleasure of leaving it. I always think: here's one more place that can't hold me.

So you want to have gone to Mars. Very good.

I have a message in a time bottle for the candidate who wins the 2016 election for the U.S. presidency. There’s opportunity to make a bold statement on the occasion of the July 2019 50th anniversary of the first humans to land on the moon: “I believe this nation should commit itself, within two decades, to commencing American permanence on the planet Mars.

In a now famous thought experiment, the philosopher Derek Parfit asks us to imagine a teleportation device that can beam a person from Earth to Mars. Rather than travel for many months on a spaceship, you need only enter a small chamber close to home and push a green button, and all the information in your brain and body will be sent to a similar station on Mars, where you will be reassembled down to the last atom. Imagine that several of your friends have already traveled to Mars this way and seem none the worse for it. They describe the experience as being one of instantaneous relocation: You push the green button and find yourself standing on Mars — where your most recent memory is of pushing the green button on Earth and wondering if anything would happen. So you decide to travel to Mars yourself. However, in the process of arranging your trip, you learn a troubling fact about the mechanics of teleportation: It turns out that the technicians wait for a person’s replica to be built on Mars before obliterating his original body on Earth. This has the benefit of leaving nothing to chance; if something goes wrong in the replication process, no harm has been done. However, it raises the following concern: While your double is beginning his day on Mars with all your memories, goals, and prejudices intact, you will be standing in the teleportation chamber on Earth, just staring at the green button. Imagine a voice coming over the intercom to congratulate you for arriving safely at your destination; in a few moments, you are told, your Earth body will be smashed to atoms. How would this be any different from simply being killed? To

A true pilgrimage requires letting go of the very things most people try to hold onto. In seeking after what the soul desires, we become pilgrims with no home but the path the soul would have us follow.

To reach the summit, one must proceed from encampment to encampment. But before setting out for the next refuge, one must prepare those coming after to occupy the place one is leaving. Only after having prepared them can one go on up. That is why, before setting out for a new refuge, we had to go back down in order to pass on our knowledge to other seekers...

It's like if you're an astronaut and you've been to the moon, what do you want to do with the rest of your life?

Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring — not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive... If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds.

To travel in space you must leave the old verbal garbage behind: God talk, country talk, mother talk, love talk, party talk. You must learn to exist with no religion, no country, no allies. You must learn to live alone in silence. Anyone who prays in space is not there.

from “It Is Necessary to Travel…,

I shall remain on Mars and read a book.

If there was an observer on Mars, they would probably be amazed that we have survived this long. There are two problems for our species' survival - nuclear war and environmental catastrophe - and we're hurtling towards them. Knowingly. This hypothetical Martian would probably conclude that human beings were an evolutionary error.

What’s the earthly use of putting a man on the moon when we cannot live on the earth?

Evolution intended us to be travelers….Settlement for any length of time, in cave or castle, has at best been…a drop in the ocean of evolutionary time.” — Bruce Chatwin, ANATOMY OF RESTLESSNESS