The central achievement of Shaftesbury from a purely psychological point of view may be said to be his transformation of conscience from an inner check into an expansive emotion. He is thus enabled to set up an æsthetic substitute not merely for traditional religion but for traditional humanism. He undermines insidiously decorum, the central doctrine of the classicist, at the very time that he seems to be defending it. For decorum also implies a control upon the expansive instincts of human nature, and Shaftesbury is actually engaged in rehabilitating “nature,” and insinuating that it does not need any control. He attains this expansiveness by putting æsthetic in the place of spiritual perception, and so merging more or less completely the good and the true with the beautiful. He thus points the way very directly to Rousseau’s rejection of both inner and outer control in the name of man’s natural goodness. Once accept Shaftesbury’s transformation of conscience and one is led almost inevitably to look on everything that is expansive as natural or vital and on everything that restricts expansion as conventional or artificial. Villers wrote to Madame de Staël (4 May, 1803): “The fundamental and creative idea of all your work has been to show primitive, incorruptible, naïve, passionate nature in conflict with the barriers and shackles of conventional life. … Note that this is also the guiding idea of the author of ‘Werther.’” This contrast between nature and convention is indeed almost the whole of Rousseauism. In permitting his expansive impulses to be disciplined by either humanism or religion man has fallen away from nature much as in the old theology he has fallen away from God, and the famous “return to nature” means in practice the emancipation of the ordinary or temperamental self that had been thus artificially controlled. This throwing off of the yoke of both Christian and classical discipline in the name of temperament is the essential aspect of the movement in favor of original genius. The genius does not look to any pattern that is set above his ordinary spontaneous ego and imitate it. On the contrary, he attains to the self-expression that other men, intimidated by convention, weakly forego.