“Experts have a vested interest in their own playpens, and so they will quite naturally argue that 'education' is impossible without them (can you imagine an Oxford philosopher, or an elementary particle physicist arguing himself out of good money?)”

Source: His Dark Materials, The Subtle Knife (1997), Ch. 15 : Bloodmoss
Context: "You fought for the knife?"
"Yes, but — "
"Then you're a warrior. That's what you are. Argue with anything else, but don't argue with your own nature."
Will knew that the man was speaking the truth. But it wasn't a welcome truth. It was heavy and painful. The man seemed to know that, because he let Will bow his head before he spoke again.
"There are two great powers," the man said, "and they've been fighting since time began. Every advance in human life, every scrap of knowledge and wisdom and decency we have has been torn by one side from the teeth of the other. Every little increase in human freedom has been fought over ferociously between those who want us to know more and be wiser and stronger, and those who want us to obey and be humble and submit."
"And now those two powers are lining up for battle. And each of them wants that knife of yours more than anything else. You have to choose, boy. We've been guided here, both of us — you with the knife, and me to tell you about it."

"Paul Erdős and the Rise of Statistical Thinking in Elementary Number Theory" https://www.youtube.com/watch?v=5cU0g9dI1S8&t=9m40s (July, 2013) Erdős Centennial Conference, Budapest.

Essay on Atomism: From Democritus to 1960 (1961)

"Confessions of a Lonely Atheist" by Natalie Angier, in The New York Times Magazine (14 January 2001) http://partners.nytimes.com/library/magazine/home/20010114mag-atheism.html
Context: I've argued that many of what philosophers call moral sentiments can be seen in other species. In chimpanzees and other animals, you see examples of sympathy, empathy, reciprocity, a willingness to follow social rules. Dogs are a good example of a species that have and obey social rules; that's why we like them so much, even though they're large carnivores.

As quoted in Astrophysics of the Diffuse Universe (2003) by Michael A. Dopita and Ralph S. Sutherland
Context: Humanity needs practical men, who get the most out of their work, and, without forgetting the general good, safeguard their own interests. But humanity also needs dreamers, for whom the disinterested development of an enterprise is so captivating that it becomes impossible for them to devote their care to their own material profit. Without doubt, these dreamers do not deserve wealth, because they do not desire it. Even so, a well-organized society should assure to such workers the efficient means of accomplishing their task, in a life freed from material care and freely consecrated to research.

62 Eudæmonidas
Apophthegms of Kings and Great Commanders

Dr. Mary Malone, in Ch. 4 : Trepanning
His Dark Materials, The Subtle Knife (1997)

lecture III: "This Unscientific Age"
The Meaning of It All (1999)

Source: Only Begotten Daughter (1990), Chapter 5 (p. 87)