Drinking, when we are not thirsty and making love all year round, madam; that is all there is to distinguish us from other animals. – Pierre De Beaumarchais

Always remember, a cat looks down on man, a dog looks up to man, but a pig will look man right in the eye and see his equal. – Sir Winston Churchill

I subscribe to the theory that Mankind never domesticated any animal. They came in from the cold and looked cute until they were fed. – David Beard, @Raqhun

What an ugly beast the ape, and how like us. – Marcus Tullius Cicero