Who hears the fishes when they cry?

Histories are more full of examples of the fidelity of dogs than of friends.

Man is the only animal that laughs and weeps, for he is the only animal that is struck with the difference between what things are and what they ought to be.

Animals are good to think with.

Every creature in the world is like a book and a picture, to us, and a mirror.

Animals are such agreeable friends—they ask no questions, they pass no criticisms.

What delight can there be, and not rather displeasure, in hearing the barking and howling of dogs? Or what greater pleasure is there to be felt when a dog followeth a hare than when a dog followeth a dog?

An ape will be an ape, though clad in purple.

Imitate the ass in his love to his master.

We call them dumb animals, and so they are, for they cannot tell us how they feel, but they do not suffer less because they have no words.

Men, my dear, are very queer animals—a mixture of horse nervousness, ass stubbornness, and camel malice.

Be a good animal, true to your animal instincts.

Man and animals are really the conduit of food, the sepulcher of animals, and resting place of the dead, one causing the death of the other, making themselves the covering for the corruption of other dead bodies.