It constitutes an important advance in knowledge to recognize that Morality, and not, as Jodl makes out, only Christian Morality, is manifested as an inhibition, as the victory achieved by Reason over Instinct which is contemptuously described as animal, simply because its worth is judged by a standard already supplied by current views on Morals. It is inadmissible to judge by this standard when one attempts an impartial investigation into the ultimate foundations and the essence of Morality. We have no plainly obvious right--no right which does not require a proof--simply to scorn instinct as animal; to run it down from the start and with a respectful bow to give Reason precedence over it; to applaud with satisfaction the suppression of rascally Instinct by highly respectable Reason. Instinct is no more animal than any other manifestation of life in man; and he indulges in pleasant self-deception if he imagines that he is other than an animal, that is, a living organism in which all processes take place according to the same laws as in all other living beings, from the simplest one-celled creature to the most highly developed and complicated.
In itself Instinct has the same claim to dignity as Reason; according to some people an even greater one, because the former is more primitive, unpremeditated, self-assured and firmly established than the latter, and if Reason claims to be the superior, it must substantiate that claim.
As a matter of fact, that claim has never been universally acknowledged.
Periods during which Reason rules at least in name and is treated with the obsequious reverence which the model citizen has, or feigns to have, for his sovereign, are followed by others in which Instinct revolts; rebels dethrone Reason and set up Instinct in its place, or, as they call it, passion and nature. The parties which in turn wield power in these periodic revolutions may be briefly termed classical and romantic. The classicists are the legitimist supporters of Reason; the romanticists are revolutionaries, and their leaders are men like Cleon or Jack Cade, Cromwell, Washington or Robespierre; that is to say, rude demagogues or subtle dialecticians in favour of Instinct. Among the legitimists in Reason as in politics, are to be found those who maintain the divine right, who base the right of Reason to rule over Instinct upon the Will of God, and others again, the constitutionalists, who base their support on the Will of the people, on universal suffrage, who force upon Instinct the law promulgated by society. I need not carry the metaphor to extremes. Every reader can work it out in all its details. I only wanted to show quite clearly that almost all moral philosophers conceived Morality as a struggle between Reason and Instinct, as the defeat of lawlessness by law. But their views diverge widely when they try to explain the source of this law and its claim to obedience.