The Three Centuries.
Their different kinds of sensitiveness may perhaps be best expressed as follows:—
Aristocracy: Descartes, the reign of reason, evidence showing the sovereignty of the will.
Feminism: Rousseau, the reign of feeling, evidence showing the sovereignty of the senses; all lies.
Animalism: Schopenhauer, the reign of passion, evidence showing the sovereignty of animality, more honest, but gloomy.
The seventeenth century is aristocratic, all for order, haughty towards everything animal, severe in regard to the heart, "austere," and even free from sentiment, "non-German," averse to all that is burlesque and natural, generalising and maintaining an attitude of sovereignty towards the past for it believes in itself. At bottom it partakes very much of the beast of prey, and practises asceticism in order to remain master. It is the century of strength of will, as also that of strong passion.
The eighteenth century is dominated by woman, it is gushing, spiritual, and flat; but with intellect at the service of aspirations and of the heart, it is a libertine in the pleasures of intellect, undermining all authorities; emotionally intoxicated, cheerful, clear, humane, and sociable, false to itself and at bottom very rascally....
The nineteenth century is more animal, more subterranean, hateful, realistic, plebeian, and on that very account "better," "more honest," more submissive to "reality" of what kind soever, and truer; but weak of will, sad, obscurely exacting and fatalistic. It has no feeling of timidity or reverence, either in the presence of "reason" or the "heart"; thoroughly convinced of the dominion of the desires (Schopenhauer said "Will," but nothing is more characteristic of his philosophy than that it entirely lacks all actual willing). Even morality is reduced to an instinct ("Pity").
Auguste Comte is the continuation of the eighteenth century (the dominion of the heart over the head, sensuality in the theory of knowledge, altruistic exaltation).
The fact that science has become as sovereign as it is to-day, proves how the nineteenth century has emancipated itself from the dominion of ideals. A certain absence of "needs" and wishes makes our scientific curiosity and rigour possible—this is our kind of virtue.