Raising children is, in a sense, the reason the society exists in the first place. It's the most important thing that happens, and it's the culmination of all the tools and language and social structure that has evolved.

It is especially difficult for modern people to conceive that our modern, scientific age might not be an improvement over the prescientific period.

Cut off from direct experience, cut off from our own feelings and sometimes our own sensations, we are only too ready to adopt a viewpoint or perspective that is handed to us, and is not our own.

They didn't understand what they were doing. I'm afraid that will be on the tombstone of the human race.

I was certain that some people, whether by accident of birth or some pecularity of training, could tune in to another source of information and could know things about people we didn't think were possible to know.

Human intelligence was more trouble than it was worth. It was more destructive than creative, more confusing than revealing, more discouraging than satisfying, more spiteful than charitable.

Discovery, they believe, is inevitable. So they just try to do it first. That's the game in science.