“...sentences of the court on moral issues are always passed in absentia.”

“Children are the only bold philosophers. And bold philosophers will always be children. So you're right, it's a child's question, just as it should be.”

“No matter how limited their powers of reason might have been. still they must have understood that living like that was just murder, a capital crime - except it was slow, day-by-day murder. The government (or humanity) could not permit capital punishment for one man, but they permitted the murder of millions a little at a time. To kill one man - that is, to subtract 50 years from the sum of all human lives - that was a crime; but to subtract from the sum of all human lives 50,000,000 years - that was not a crime! No, really, isn't it funny? This problem in moral math could be solved in half a minute by any ten-year-old Number today, but they couldn't solve it. All their Kant's together couldn't solve it (because it never occurred to one of their Kant's to construct a system of scientific ethics - that is, one based on subtraction, addition, division, and multiplication).”

“And happiness...Well, after all, desires torment us, don't they? And, clearly, happiness is when there are no more desires, not one...What a mistake, what ridiculous prejudice it's been to have marked happiness always with a plus sign. Absolute happiness should, of course, carry a minus sign — the divine minus.”

“The moon, our own, earthly moon is bitterly lonely, because it is alone in the sky, always alone, and there is no one to turn to, no one to turn to it. All it can do is ache across the weightless airy ice, across thousands of versts, toward those who are equally lonely on earth, and listen to the endless howling of dogs. (“A Story About The Most Important Thing”)”

“I looked for it but I found no way out of this wild logical thicket. This was a tangle every bit as unknown and terrifying as that behind the Green Wall These were creatures just as extraordinary and incomprehensible, and they said as much with no words. I imagined that I saw through some kind of thick class the square root of minus one-infinitely huge and at the same time infinitely small, scorpion-shaped, with that hidden but always sensed sting of the minus sign... But maybe that is nothing except my "soul," like the legendary scorpion of the ancients, which would deliberately sting itself with everything that...”

“Then how can there be a final revolution? There is no final one; revolutions are infinite.”