Emile, or On Education  

Let [youth] know that man is by nature good, let him feel it, let him judge his neighbour by himself; but let him see how men are depraved and perverted by society."--Emile, or On Education (1762) by Jean-Jacques Rousseau

"The first movements of human nature are always right. There is no original perversity in the human heart."--Emile, or On Education (1762) by Jean-Jacques Rousseau

"In the union of the sexes each alike contributes to the common end, but in different ways. From this diversity springs the first difference which may be observed between man and woman in their moral relations. The man should be strong and active; the woman should be weak and passive; the one must have both the power and the will; it is enough that the other should offer little resistance."--Emile, or On Education (1762) by Jean-Jacques Rousseau

“God makes all things good; man meddles with them and they become evil. He forces one soil to yield the products of another, one tree to bear another's fruit. He confuses and confounds time, place, and natural conditions. He mutilates his dog, his horse, and his slave. He destroys and defaces all things; he loves all that is deformed and monstrous; he will have nothing as nature made it, not even man himself, who must learn his paces like a saddle-horse, and be shaped to his master's taste like the trees in his garden. Yet things would be worse without this education, and mankind cannot be made by halves. Under existing conditions a man left to himself from birth would be more of a monster than the rest. Prejudice, authority, necessity, example, all the social conditions into which we are plunged, would stifle nature in him and put nothing in her place. She would be like a sapling chance sown in the midst of the highway, bent hither and thither and soon crushed by the passers-by.” --Emile (1762) by Jean-Jacques Rousseau

"Les idées générales et abstraites sont la source des plus grandes erreurs des hommes ; jamais le jargon de la métaphysique n’a fait découvrir une seule vérité, et il a rempli la philosophie d’absurdités dont on a honte, sitôt qu’on les dépouille de leurs grands mots."[1]