The greatness of a nation and its moral progress can be judged by the way its animals are treated.
I am in favor of animal rights as well as human rights. That is the way of a whole human being.
I think I could turn and live with animals, they are so placid and self-contained, I stand and look at them long and long.
The question is not, 'Can they reason?' nor, 'Can they talk?' but rather, 'Can they suffer?'
In the end, we will conserve only what we love, we will love only what we understand, and we will understand only what we are taught.
The worst sin towards our fellow creatures is not to hate them, but to be indifferent to them. That's the essence of inhumanity.