"The forceps of our minds are clumsy forceps, and crush the truth a little in taking hold of it."

"Adapt or perish, now as ever, is nature's inexorable imperative."

"The past is but the beginning of a beginning."

"Religion is pickled God."

"Human history becomes more and more a race between education and catastrophe."

"When I see an adult on a bicycle, I do not despair for the future of the human race."

"If man does his best what else is there?"

"General principles should not be based on exceptional cases."

"As flies to wanton boys, are we to the gods; they kill us for their sport."

"I am not bound to please thee with my answers."

"If men were born free, they would, so long as they remained free, form no conception of good and evil."

"Rincewind had been told that death was just like going into another room. The difference is, when you shout, 'Where's my clean socks?' no-one answers."