If man makes himself a worm he must not complain when he is trodden on.

In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so.

He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

Out of timber so crooked as that from which man is made nothing entirely straight can be built

By a lie a man throws away and, as it were, annihilates his dignity as a man

Man must be disciplined, for he is by nature raw and wild