"Until one has loved an animal a part of one's soul remains unawakened." -Anatole France
"Women and cats will do as they please, and men and dogs should relax and get used to the idea." - Robert A. Heinlein
"Animals are such agreeable friends - they ask no questions; they pass no criticisms." - George Eliot
"He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals." -Immanuel Kant