Animals are in possession of themselves; their soul is in possession of their body. But they have no right to their life, because they do not will it. 

When the eagles are silent, the parrots begin to jabber.

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

The righteous know the needs of their animals, but the mercy of the wicked is cruel.

How like to us is that filthy beast the ape.

Man is a troublesome animal and therefore is not very manageable.

One of the animals which a generous and sociable man would soonest become is a dog. A dog can have a friend; he has affections and character; he can enjoy equally the field and the fireside; he dreams, he caresses, he propitiates; he offends and is pardoned; he stands by you in adversity; he is a good fellow.

Animals, in their generation, are wiser than the sons of men, but their wisdom is confined to a few particulars, and lies in a very narrow compass.

Alas! We are ridiculous animals.

Man is a noble animal, splendid in ashes and pompous in the grave.

Go to the ant, you lazybones; consider its ways, and be wise.

Who hears the fishes when they cry?

Life is no way to treat an animal.