If a man aspires towards a righteous life, his first act of abstinence is from injury to animals.
The fate of animals is of greater importance to me than the fear of appearing ridiculous; it is indissolubly connected with the fate of men.
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.
I am in favor of animal rights as well as human rights. That is the way of a whole human being.
The greatness of a nation and its moral progress can be judged by the way its animals are treated.