A good dog, sir, deserves a good bone.

Happiness is a warm puppy.

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.

Man is no man, but a wolf, to a stranger.

Animals are good to think with.

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.

Man, when perfected, is the best of animals, but when separated from law and justice, he is the worst of all. 

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

Life is no way to treat an animal.

I hate the sight of monkeys; they remind me so of poor relations.

A bull contents himself with one meadow, and one forest is enough for a thousand elephants; but the little body of a man devours more than all other living creatures.

Animals have these advantages over man: they never hear the clock strike, they die without any idea of death, they have no theologians to instruct them, their last moments are not disturbed by unwelcome and unpleasant ceremonies, their funerals cost them nothing, and no one starts lawsuits over their wills.

It is remarkable that only small birds properly sing.