I shall immerse myself among men. I shall be silent and attentive, an appreciative companion. There will be many acquaintances, friends, women — and … - Stanisław Lem

The book does not contain "everything about the human being," because that is impossible. The largest libraries in the world do not contain "everything." The quantity of anthropological data discovered by scientists now exceeds any individual's ability to assimilate it. The division of labor, including intellectual labor, begun thirty thousand years ago in the Paleolithic, has become an irreversible phenomenon, and there is nothing that can be done about it. Like it or not, we have placed our destiny in the hands of the experts. A politician is, after all, a kind of expert, if self-styled. Even the fact that competent experts must serve under politicians of mediocre intelligence and little foresight is a problem that we are stuck with, because the experts themselves cannot agree on any major world issue. A logocracy of quarreling experts might be no better than the rule of the mediocrities to which we are subject. The declining intellectual quality of political leadership is the result of the growing complexity of the world. Since no one, be he endowed with the highest wisdom, can grasp it in its entirety, it is those who are least bothered by this who strive for power.

I have fundamental reservations to this adaptation. First of all I would have liked to see the planet Solaris which the director unfortunately denied me as the film was to be a cinematically subdued work. And secondly — as I told Tarkovsky during one of our quarrels — he didn't make Solaris at all, he made Crime and Punishment. What we get in the film is only how this abominable Kelvin has driven poor Harey to suicide and then he has pangs of conscience which are amplified by her appearance; a strange and incomprehensible appearance. [...]

We don’t need other worlds. We need mirrors. We don’t know what to do with other worlds. One world is enough, even there we feel stifled. We desire to find our own idealized image; they’re supposed to be globes, civilizations more perfect than ours; in other worlds we expect to find the image of our own primitive past.