We call them dumb animals, and so they are, for they cannot tell us how they feel, but they do not suffer less because they have no words.

If you are a dog and your owner suggests that you wear a sweater, suggest that he wear a tail.

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

I do not mean to call an elephant a vulgar animal, but if you think about him carefully, you will find that his nonvulgarity consists in such gentleness as is possible to elephantine nature—not in his insensitive hide, nor in his clumsy foot, but in the way he will lift his foot if a child lies in his way; and in his sensitive trunk, and still more sensitive mind, and capability of pique on points of honor.

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

Who sleepeth with dogs shall rise with fleas.

Man is the only animal for whom his own existence is a problem which he has to solve and from which he cannot escape.

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

What delight can there be, and not rather displeasure, in hearing the barking and howling of dogs? Or what greater pleasure is there to be felt when a dog followeth a hare than when a dog followeth a dog?

Histories are more full of examples of the fidelity of dogs than of friends.

Be a good animal, true to your animal instincts.

Do you not see how God is praised by those in the heavens and those on earth? The very birds praised Him as they wing their way.

There are some who, if a cat accidentally comes into the room, though they neither see it nor are told of it, will presently be in a sweat and ready to die away.