There be beasts that, at a year old, observe more, and pursue that which is for their good more prudently, than a child can do at ten.

Man is the only animal that can remain on friendly terms with the victims he intends to eat until he eats them.

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

It is remarkable that only small birds properly sing.

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

A good dog, sir, deserves a good bone.

In every man is a wild beast; most of them don’t know how to hold it back, and the majority give it full rein when they are not restrained by terror of law.

Happiness is a warm puppy.

Alas! We are ridiculous animals.

Life is no way to treat an animal.

Of all the creatures that breathe and creep on the surface of the earth, none is more to be pitied than man.