Man

Man is the only animal that laughs at other animals.
Man is the only animal that eats when he is not hungry, and drinks
when he is not thirsty and makes love at all seasons.
Man is the only animal that wears his brother's skin.
Man is the only animal that succeeds in improving on nature, especially its
cruelties.
Man is the only animal that speaks, except when he talks like an ass.
Man is the only animal that goes to sleep when he is not sleepy, and awakes
when he is.
Man is the only animal that feels insulted when he is called an animal.