In vain do they talk of happiness who never subdued an impulse in obedience to a principle. He who never sacrificed a present to a future good, or a personal to a general one, can speak of happiness only as the blind speak of color.
Horace MannEnslave a man and you destroy his ambition, his enterprise, his capacity. In the constitution of human nature, the desire of bettering one's condition is the mainspring of effort. The first touch of slavery snaps this spring.
Horace Mann