The whole plan hinged upon the natural curiosity of potatoes. - Stanisław Lem

What would happen to us if we could truly sympathize with others, feel with them, suffer for them? The fact that human anguish, fear, and suffering melt away with the death of the individual, that nothing remains of the ascents, the declines, the orgasms, and the agonies, is a praiseworthy gift of evolution, which made us like the animals. If from every unfortunate, from every victim, there remained even a single atom of his feelings, if thus grew the inheritance of the generations, if even a spark could pass from man to man, the world would be full of raw, bowel-torn howling.

the other hand neither was he a man, nor any sapient proteinoid of the glutinous-albuminous variety. The head was round and plump, with red cheeks, but for eyes it had two penny whistles, and for ears it had thuribles, which gave off a thick cloud of incense. He was dressed

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.