Thus alongside the real world and in more or less sharp opposition to it, Rousseau builds up a fictitious world, that _pays des chimères_, which is alone, as he tells us, worthy of habitation. To study his imaginative activity is simply to study the new forms that he gives to what I have called man’s ineradicable longing for some Arcadia, some land of heart’s desire. Goethe compares the illusions that man nourishes in his breast to the population of statues in ancient Rome which were almost as numerous as the population of living men. The important thing from the point of view of sanity is that a man should not blur the boundaries between the two populations, that he should not cease to discriminate between his fact and his fiction. If he confuses what he dreams himself to be with what he actually is, he has already entered upon the pathway of madness. It was, for example, natural for a youth like Rousseau who was at once romantic and musical, to dream that he was a great composer; but actually to set up as a great composer and to give the concert at Lausanne, shows an unwillingness to discriminate between his fictitious and his real world that is plainly pathological. If not already a megalomaniac, he was even then on the way to megalomania. To wander through the world as though it were an Arcadia or enchanted vision contrived for one’s especial benefit is an attitude of childhood--especially of imaginative childhood. “Wherever children are,” says Novalis, “there is the golden age.” As the child grows and matures there is a more or less painful process of adjustment between his “vision” and the particular reality in which he is placed. A little sense gets knocked into his head, and often, it must be confessed, a good deal of the imagination gets knocked out. As Wordsworth complains, the vision fades into the light of common day. The striking fact about Rousseau is that, far more than Wordsworth, he held fast to his vision. He refused to adjust it to an unpalatable reality. During the very years when the ordinary youth is forced to subordinate his luxurious imaginings to some definite discipline he fell under the influence of Madame de Warens who encouraged rather than thwarted his Arcadian bent. Later, when almost incurably confirmed in his penchant for revery, he came into contact with the refined society of Paris, an environment requiring so difficult an adjustment that no one we are told could accomplish the feat unless he had been disciplined into the appropriate habits from the age of six. He is indeed the supreme example of the unadjusted man, of the original genius whose imagination has never suffered either inner or outer constraint, who is more of an Arcadian dreamer at sixty perhaps than he was at sixteen. He writes to the Bailli de Mirabeau (31 January, 1767):