"No one culture has ever developed all human potentialities; it has always selected certain capacities, mental and emotional and moral, and stifled others. Each culture is a system of values which may well complement the values in another."

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Enslave 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