[...] endless action and reaction. Those beautifully rounded pebbles which you gather on the sand and which you hold in your hand and marvel at their exceeding smoothness, were chiseled into their varies and graceful forms by the ceaseless action of countless waves. Nature is herself a great worker and never tolerates, without certain rebuke, any contradiction to her wise example. Inaction is followed by stagnation. Stagnation is followed by pestilence and pestilence is followed by death.
Author: Frederick Douglass