with uniformity and after prolonged and uncertain groping. Others, like the Romans and the English, stop at the lowest stages; others, like the Hindoos and Germans, mount to the uppermost. If, now, after considering the passage from the representation to the idea, we regard the passage from the representation to the resolution, we find here elementary differences of like importance and of the same order, according as the impression is vivid, as in Southern climes, or faint, as in Northern climes, as it ends in instantaneous action as with barbarians, or tardily as with civilized nations, as it is capable or not of growth, of inequality, of persistence and of association. The entire system of human passion, all the risks of public peace and security, all labor and action, spring from these sources. It is the same with the other primordial differences; their effects embrace an entire civilization, and may be likened to those algebraic formulæ which, within narrow bounds, describe beforehand the curve of which these form the law. Not that this law always prevails to the end; sometimes, perturbations arise, but, even when this happens, it is not because the law is defective, but because it has not operated alone. New elements have entered into combination with old ones; powerful foreign forces have interfered to oppose primitive forces. The race has emigrated, as with the ancient Aryans, and the change of climate has led to a change in the whole intellectual economy and structure of society. A people has been conquered like the Saxon nation, and the new political structure has imposed on it customs, capacities, and desires which it did not possess. The nation has established itself permanently in the midst of downtrodden and threatening subjects, as with the ancient Spartans, while the necessity of living, as in an armed encampment, has violently turned the whole moral and social organization in one unique direction. At all events, the mechanism of human history is like this. We always find the primitive mainspring consisting of some widespread tendency of soul and intellect, either innate and natural to the race or acquired by it and due to some circumstance forced upon it. These great given mainsprings gradually produce their effects, that is to say, at the end of a few centuries they place the nation in a new religious, literary, social, and economic state; a new condition which, combined with their renewed effort, produces another condition, sometimes a good one, sometimes a bad one, now slowly, now rapidly, and so on; so that the entire development of each distinct civilization may be considered as the effect of one permanent force which, at every moment, varies its work by modifying the circumstances where it acts. V. The three primordial forces.--Race