The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us.
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.
Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.
Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe are challenged by this point of pale light.
In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.
All civilizations become either spacefaring or extinct.
We began as wanderers, and we are wanderers still.
We are made of star-stuff. Our bodies are made of star-stuff. There are pieces of star within us all.
Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.
Space and time are the framework within which the mind is constrained to construct its experience of reality.
Before another century is done it will be hard for people to imagine a time when humanity was confined to one world, and it will seem to them incredible that there was ever anybody who doubted the value of space and wanted to turn his or her back on the Universe.
This most beautiful system of the sun, planets and comets, could only proceed from the counsel and dominion of an intelligent and powerful Being.
We want to be first; not first if, not first but; but first!
I didn’t feel like a giant. I felt very, very small.
Houston, Tranquillity Base here. The Eagle has landed.
In life and in the universe it’s always best to keep looking up.
Not only are we in the universe, the universe is in us. I don’t know of any deeper spiritual feeling than what that brings upon me.
When we try to look farther into the universe we come to what appears to be the end of space but actually it’s the beginning of time.
A zero-gravity flight is a first step toward space travel.
Earth is a small town with many neighborhoods in a very big universe.