"It turns out that the scientist behaves the way the rest of us do when our beliefs are in conflict with the evidence. We become irritated, we pretend the conflict does not exist, or we paper it over with meaningless phrases."

Robert Jastrow, in God and the Astronomers

"To never harbor self-doubt is poison poison for the soul,"

"and these aliens want to inflict their certainties upon us."
-Sadeq, from Charles Stross' Accelerando

“I am almost inclined to set it up as a canon that a children’s story which is enjoyed only by children is a bad children’s story.”

-C.S. Lewis in On Three Ways of Writing for Children

"Responsibility rests upon recognition"

-Ralph Ellison's Invisible Man

"I had discovered that learning something, no matter how complex, wasn't hard when I had a reason to want to know it."

Homer H. Hickam Jr., Rocket Boys