Others expect children to invent techniques that civilization took eons to evolve.

He identifies three approaches that a friendly civilization might take to help humanity:

A civilization could take either path: storming the Cosmos or cutting itself off from it.

When civilization takes a nose dive, how can you look away?

In a region where civilization only took hold about 100 years ago, anticipating its collapse comes naturally.

Actually, civilisation has probably taken us away from any unified idea of art.

Good civilizations took care that such ideas did not gain energy, did not even get a chance for birth.

The town's ancient center, where-it might be said-Klingon civilization first took hold.

Along the path foreseen by the current space movement, human civilization would take decades to become firmly established in space.

The human civilization has taken gigantic steps in the conquest of the space.