"I just wonder what it would be like to be reincarnated in an animal whose species had been so reduced in numbers than it was in danger of extinction. What would be its feelings toward the human species whose population explosion had denied it somewhere to exist... I must confess that I am tempted to ask for reincarnation as a particularly deadly virus."

“It looks as if it was put in by an Indian.”

“You managed not to get eaten then?”

“You can't have been here that long—you haven't got a pot belly.”

“If we are to exercise our responsibilities so that all life can continue on earth, they must have a moral and philosophical basis. Simple self-interest, economic profit and absolute materialism are no longer enough... It has been made perfectly clear that a concern for any part of life on this planet — human, plant or animal, wild or tame — is a concern for all life. A threat to any part of the environment is a threat to the whole environment, but we must have a basis of assessment of these threats, not so that we can establish a priority of fears, but so that we can make a positive contribution to improvement and ultimate survival.”

“The man who invented the red carpet needed his head examined.”

“Have you run over anybody?”