The worst sin towards our fellow creatures is not to hate them, but to be indifferent to them: that's the essence of inhumanity.
The question is not, 'Can they reason?' nor, 'Can they talk?' but rather, 'Can they suffer?'
The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing.
I am in favor of animal rights as well as human rights. That is the way of a whole human being.
Animals are reliable, many full of love, true in their affections, predictable in their actions, grateful and loyal.
The greatness of a nation and its moral progress can be judged by the way its animals are treated.
Animals are sentient beings, they feel emotions just like us. They don't have a voice, but we do. We must use ours to protect them.
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.