I think that an advanced planetary civilization will…

The planetary phase of history has begun, but the future shape of global society remains profoundly uncertain. Though perhaps improbable, a shift toward a…

— Paul Raskin

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…

— Carl Sagan

We're headed for what is called Type 1 Civilization, planetary civilization. Type 2 would be stellar civilization, like Star Trek. Type 3 Civilization would…

— Michio Kaku

Our civilization, bequeathed to us by fierce adventurers, eaters of meat and hunters, is so full of hurry and combat, so busy about many…

— James Joyce

We are somehow the children of the planet, we are somehow its finest hour; we bind time, we bind the past, we anticipate the…

— Terence McKenna

“The mission is, not to replace old world mindlessness with new world mindlessness, but to put an end to all forms of brainless authoritarianism.”

— Abhijit Naskar

Another success is the post-office, with its educating energy augmented by cheapness and guarded by a certain religious sentimentin mankind; so that the power…

— Ralph Waldo Emerson

The invention of gunpowder and the constant improvement of firearms are enough in themselves to show that the advance of civilization has done nothing…

— Carl von Clausewitz

Whenever we touch nature we get clean. People who have got dirty through too much civilization take a walk in the woods, or a…

— Carl Jung

Wine is one of the most civilized things in the world and one of the most natural things of the world that has been…

— Ernest Hemingway

We released 400,000 classified documents, the most extraordinary history of a war to ever have been released in our civilization. Those documents cover 109,000…

— Julian Assange

“The voice in the head that never stops speaking becomes a civilization that is obsessed with form and therefore knows nothing of the most…

— Eckhart Tolle

Violence is not necessary to destroy a civilization. Each civilization dies from indifference toward the unique values which created it.

— Nicolas Gomez Davila

Sentiment is the mightiest force in civilization; not sentimentality, but sentiment. Women will bring this into politics. Home, sweet home, is as powerful on…

— Judith Ellen Foster

What sets worlds in motion is the interplay of differences, their attractions and repulsions. Life is plurality, death is uniformity. By suppressing differences and…

— Octavio Paz