“Whitewash on the forehead hardens the brain into a state of obstinacy, perhaps.”

“But perhaps a heart takes experience and time to harden.”

“It seemed that the years had softened her, or perhaps they'd hardened me”

“Already, the brain consumed more than a quarter of the body's blood supply... an organ accounting for only a small percentage of body mass. If brains grew larger, and better, then perhaps they would consume more - perhaps so much that, like an infection, they would overrun their hosts and kill the bodies that transported them. Or perhaps, in their infinite cleverness, they would find a way to destroy themselves and each other. There were times when, as he [Stone] sat at State Department or Defense Department meetings, and looked around the table, he would see nothing more than a dozen gray, convoluted brains sitting on the table... Just brains, sitting around, trying to decide how to outwit other brains, at other conference tables.Idiotic.”

“In truth, there is no such thing as an “intuitive boundary” of a sensory state. That most philosophers take such states as brain-bound is not an intuition, but a prejudice.”

“love is the only fire that is hot enough to melt the iron obstinacy of a creatures will”