There are no answers, only choices.

Really, one of us ought to have the courage to call the experiment off and shoulder the responsibility for the decision, but the majority reckons that that kind of courage would be a sign of cowardice, and the first step in a retreat. They think it would mean an undignified surrender for mankind as if there was any dignity in floundering and drowning in what we don't understand and never will.

I believe in no final solutions.

The first 90% of the job takes 90% of the time. The remaining 10% of the job requires another 90% of the time. The first condition of immortality is death.

Solaristics, wrote Muntius, is a substitute for religion in the space age. It is faith wrapped in the cloak of science; contact, the goal for which we are striving, is as vague and obscure as communion with the saints or the coming of the Messiah.

Art gives man a reminder that he is not just a consumer but a creator as well. It awakens in him the urge to struggle and perform great deeds; it fills him with the craving to pass on the Promethean fire to generations to come.

A writer should not run around with a mirror for his countrymen; he should tell his society and his times things no one ever thought before.