My first impulse to publish some of my hypotheses concerning the origin of morality I owe to a clear, well-written, and even precocious little book, in which a perverse and vicious kind of moral philosophy (your real English kind) was definitely presented to me for the first time; and this attracted me--with that magnetic attraction, inherent in that which is diametrically opposed and antithetical to one's own ideas. The title of the book was _The Origin of the Moral Emotions_; its author, Dr. Paul Rée; the year of its appearance, 1877. I may almost say that I have never read anything in which every single dogma and conclusion has called forth from me so emphatic a negation as did that book; albeit a negation tainted by either pique or intolerance. I referred accordingly both in season and out of season in the previous works, at which I was then working, to the arguments of that book, not to refute them--for what have I got to do with mere refutations but substituting, as is natural to a positive mind, for an improbable theory one which is more probable, and occasionally no doubt, for one philosophic error, another. In that early period I gave, as I have said, the first public expression to those theories of origin to which these essays are devoted, but with a clumsiness which I was the last to conceal from myself, for I was as yet cramped, being still without a special language for these special subjects, still frequently liable to relapse and to vacillation. To go into details, compare what I say in _Human, all-too-Human_, part i., about the parallel early history of Good and Evil, Aph. 45 (namely, their origin from the castes of the aristocrats and the slaves); similarly, Aph. 136 et seq., concerning the birth and value of ascetic morality; similarly, Aphs. 96, 99, vol. ii., Aph. 89, concerning the Morality of Custom, that far older and more original kind of morality which is _toto cœlo_ different from the altruistic ethics (in which Dr. Rée, like all the English moral philosophers, sees the ethical "Thing-in-itself"); finally, Aph. 92. Similarly, Aph. 26 in _Human, all-too-Human_, part ii., and Aph. 112, the _Dawn of Day_, concerning the origin of Justice as a balance between persons of approximately equal power (equilibrium as the hypothesis of all contract, consequently of all law); similarly, concerning the origin of Punishment, _Human, all-too-Human_, part ii., Aphs. 22, 23, in regard to which the deterrent object is neither essential nor original (as Dr. Rée thinks:--rather is it that this object is only imported, under certain definite conditions, and always as something extra and additional). 5.