“Let mental culture go on advancing, let the natural sciences progress in even greater extent and depth, and the human mind widen itself as much as it desires: beyond the elevation and moral culture of Christianity, as it shines forth in the Gospels, it will not go.”

“The domestication (the culture) of man does not go deep--where it does go deep it at once becomes degeneration (type: the Christian). The 'savage' (or, in moral terms, the evil man) is a return to nature--and in a certain sense his recovery, his cure from 'culture'.”

“Culture is the widening of the mind and of the spirit.”

“There are cultures on Earth that are more alien than some of the aliens in SF.More extensive quote: "the theme of immersion into different cultures comes naturally to science fiction, since a major theme of the genre is how humans interact with 'alien' cultures. Yet many of the so-called alien cultures of science fiction, particularly in its younger days, felt myopic, more like Western cultures even than other cultures on our own planet.”

“I think nature's imagination Is so much greater than man's, she's never going to let us relax”

“Our culture tends "to regard the mere energy of impulse as being in every mental and moral way equivalent and even superior to defined intention." Instead we should consider "an idea that once was salient in western culture: the idea of "making a life", by which was meant conceiving human existence, one's own or another's, as if it were a work of art upon which one might pass judgment.... This desire to fashion, to shape, a self and a life has all but gone from a contemporary culture whose emphasis, paradoxically enough, is so much on self.”