“It is remarkable indeed how we human beings are capable of delighting in the mating call of a flower while we are surrounded by the charred carcasses of our fellow animals.”

“Behind a remarkable scholar we not infrequently find an average human being, and behind an average artist we often find a very remarkable human being.”

“Though reason must guide us in laying down standards and laws regarding animals, and in examining the arguments of those who reject such standards, it is usually best in any moral inquiry to start with the original motivation, which in the case of animals we may without embarrassment call love. Human beings love animals as only the higher love the lower, the knowing love the innocent, and the strong love the vulnerable. When we wince at the suffering of animals, that feeling speaks well of us even when we ignore it, and those who dismiss love for our fellow creatures as mere sentimentality overlook a good and important part of our humanity.”

“When a man is a mystery to himself you can hardly call him mysterious.""God will judge us by what we did to relieve the suffering of our fellow human beings. I don't think God cares what doctrine we embrace.”

“When we make friends then we change from being animals to being human.”

“The decoding of the human genome tells us that we are indeed related to the animals, the insects, and the plants, and that, like it or not, Earth is where we belong.”