“For thousands of years humankind's finest minds have been struggling with the theoretical problem of finding the forms that would give peoples the possibility, without the greatest of torment, without internecine strife, of living side by side in friendship and brotherhood. Practically speaking, the first step in this direction is only being taken now, today.”

“Some people say that without God, people would give themselves permission to do anything. [Yet] only with God, only with the view that God’s on your side, can people give themselves permission to do things that otherwise would be called satanic.”

“The problem with this life is that it’s impossible to find something that does good on one side without causing harm on the other and vice versa”

“He had never learned to live without delight. And he would have to learn to, just as, in a Prohibition country, he supposed he would have to learn to live without sherry. Theoretically he knew that life is possible, maybe even pleasant, without joy, without passionate griefs. But it had never occurred to him that he might have to live like that.”

“To live only for some unknown future is superficial. It is like climbing a mountain to reach the peak without experiencing its sides. The sides of the mountain sustain life, not the peak. This is where things grow, experience gained, and technologies are mastered. The importance of peak lies only in the fact that it defines the sides. So I went on towards the top, but always experiencing the sides. I had a long way to go but I was in no hurry. I went in little steps—just one step after another—but each step towards the top.”

“Open-minded is the ability to look on both sides without taking side. Fanaticism must be put to death.”

“Only those who are subjective, one-sided and superficial in their approach to problems will smugly issue orders or directives the moment they arrive on the scene, without considering the circumstances, without viewing things in their totality (their history and their present state as a whole) and without getting to the essence of things (their nature and the internal relations between one thing and another). Such people are bound to trip and fall.”

“Love without communication is like two sides of a coin that live together, but never see and meet each other. Love without any medium of communication is full of struggle and a yearning. It is just like living with one hope in mind and spending your whole life waiting for each other.”

“Courage is not a quality one normally associates with mathematicians. Yet it should apply to people who work in their attics in secret for seven years without cease on a problem that has eluded the greatest mathematical minds since first proposed in 1637.”

“There's what we did wrong and what we did right. The mistake is that we did some things against the people — by us and also by the enemy — but the other side, as I told you, is that without our struggle there would be no Cambodia right now.”