There are two spirits abroad in the world,—the spirit of Caution, the spirit of Dare, the spirit of Quiescence, the spirit of Unrest; the spirit of Immobility, the spirit of Change; the spirit of Hold-fast-to-that-which-you-have, the spirit of Let-go-and-fly-to-that-which-you-have-not; the spirit of the slow and steady builder, careful of its labors, loathe to part with any of its achievements, wishful to keep, and unable to discriminate between what is worth keeping and what is better cast aside, and the spirit of the inspirational destroyer, fertile in creative fancies, volatile, careless in its luxuriance of effort, inclined to cast away the good together with the bad. Society is a quivering balance, eternally struck afresh, betwee... (From : TheAnarchistLibrary.org.)