Until one has loved an animal, a part of one's soul remains unawakened.

The love for all living creatures is the most noble attribute of man.

I care not for a man's religion whose dog and cat are not the better for it.
Animals are such agreeable friends—they ask no questions; they pass no criticisms.
The more I learn about people, the more I like my dog.
An animal's eyes have the power to speak a great language.
We can judge the heart of a man by his treatment of animals.