We don't want to conquer the cosmos, we simply want to extend the boundaries of Earth to the frontiers of the cosmos.

Giese was an unemotional man, but then in the study of Solaris emotion is a hindrance to the explorer. Imagination and premature theorizing are positive disadvantages in approaching a planet where-as has become clear-anything is possible... The fact is that in spite of his cautious nature the scrupulous Giese more than once jumped to premature conclusions. Even when on their guard, human beings inevitably theorize.

For moral reasons I am an atheist - for moral reasons. I am of the opinion that you would recognize a creator by his creation, and the world appears to me to be put together in such a painful way that I prefer to believe that it was not created by anyone than to think that somebody created this intentionally.

How do you expect to communicate with the ocean, when you can’t even understand one another?

The age-old faith of lovers and poets in the power of love, stronger than death, that Finis vitae sed non amoris, is a lie, useless and not even funny.

Futurologists have been multiplying like flies since the day Herman Kahn made Cassandra's profession "scientific," yet somehow not one of them has come out with the clear statement that we have wholly abandoned ourselves to the mercy of technological progress. The roles are now reversed: humanity becomes, for technology, a means, an instrument for achieving a goal unknown and unknowable.

Faith is, at one and the same time, absolutely necessary and altogether impossible.