“Never call anyone a baboon unless you are sure of your facts.”

“He had also learned that there is no use murdering people; there are always so many left, and if you tried to murder them all you would never get anything else done.”

“We all make mistakes, but intelligence enables us to do it on purpose.”

“Intelligence is the capacity to know what we are doing and instinct is just instinct. The results are about the same.”

“Would it not be downright cruel to keep him in semi-captivity in a town or city, where the opportunities for wreaking havoc and destruction upon the landscape are necessarily so limited? In a word,...”

“The stork is voiceless because there is really nothing to say.”

“Even the Middle Ages, which condemned and punished animals in due form, was in this way much closer to them than we are. They held them to be guilty: which was a way of honoring them. We take them ...”

“The clearest way into the Universe is through a forest wilderness.”

“Until one has loved an animal, a part of one's soul remains unawakened.”

“You have killed my love. You used to stir my imagination. Now you don't even stir my curiosity. You simply produce no effect. I loved you because you were marvelous, because you had genius and inte...”

“Intelligence minus purpose equals stupidity.”

“But spontaneity is not by any means a blind, disorderly urge, a mere power of caprice. A philosophy restricted to the alternatives of conventional language has no way of conceiving an intelligence ...”