He that hath a trade hath an estate; he that hath a calling hath an office of profit and honor.

Excellence in any department can be attained only by the labor of a lifetime; it is not to be purchased at a lesser price.

Even in the meanest sorts of labor, the whole soul of a man is composed into a kind of real harmony the instant he sets himself to work.

If a man loves the labor of his trade apart from any question of success or fame, the Gods have called him.

Genius begins great works; labor alone finishes them.

I tell you, sir, the only safeguard of order and discipline in the modern world is a standardized worker with interchangeable parts. That would solve the entire problem of management.

Labor, if it were not necessary for existence, would be indispensable for the happiness of man.

Every man is dishonest who lives upon the labor of others, no matter if he occupies a throne.

Life gives nothing to man without labor.

It is only through labor and painful effort, by grim energy and resolute courage, that we move on to better things.