"

Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become space...more

"

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one p...more

"

There is a wide yawning black infinity. In every direction the extension is endless, the sensation of depth is overwhelming. And the darkness is immor...more

"

Birds know, better than humans, not to spoil the nest.

"

For all its material advantages, the sedentary life has left us edgy, unfulfilled. Even after 400 generations in villages and cities, we haven’t forgo...more

"

We are the only species on the planet, so far as we know, to have invented a communal memory stored neither in our genes nor in our brains. The wareho...more

"

Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But the Voyager record will still be...more

"

Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the sh...more

"

The suppression of uncomfortable ideasmay be common in religion and politics, but it is not the path to knowledge; it has no placein the endeavor of s...more

"

Across the sea of space, the stars are other suns.

"

Does trying to understand the universe at all betray a lack of humility? I believe it is true that humility is the only just response in a confrontati...more

"

I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue. But much as I want to be...more

"

The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and ...more

"

Observation: I can’t see a thing.Conclusion: Dinosaurs.

"

To live in the hearts we leave behind is to live forever.