If abuses are destroyed, man must destroy them. If slaves are freed, man must free them. If new truths are discovered, man must discover them. If the naked are clothed; if the hungry are fed; if justice is done; if labor is rewarded; if superstition is driven from the mind; if the defenseless are protected and if the right finally triumphs, all must be the work of man. The grand victories of the future must be won by man, and by man alone.

On the Gods and Other Essays