What does Rousseau mean when he writes that “a taste for letters, philosophy, and the fine arts softens bodies and souls?” (Paragraph 23)
His initial argument, as laid out in the First Discourse, responds to the question of whether or not the restoration of the arts and sciences has contributed to the purification of our morals. After showing that our morals are not purified, Rousseau then responds to the new topic he has created: “the necessary influence of the pursuit of the sciences on the morals of peoples under any circumstances,” which he then proves through multiple arguments, one of which is that letters, fine arts, and philosophy soften bodies and souls.
Rousseau writes that “work in the study” weakens temperaments and makes men frail, but in his Preface to “Narcissus,” he fails to explain how this weakening occurs. He seems to say that the weakening is both physical and mental, but he does not identify the mechanism of the weakening. What exactly does study do that weakens man? The physical aspect of the argument is strong, it seems obvious that a man who stays seated and inactive while studying will weaken physically, “wear[ing] out the machine.” But how does this work mentally? In this section of Preface to “Narcissus,” Rousseau does not mention the way(s) that studying might weaken the mind, and I believe that his argument here could have benefitted from the inclusion of an idea found later in this piece. Perhaps this is where Rousseau should have mentioned part of his conclusion that only a select few scholars, like Socrates, ever have been and ever will be capable of studying correctly, because only they can resist the folly of vanities. This would have explained more fully Rousseau’s idea that studying, generally considered a practice that strengthens the mind, could be actually be a force that weakens man’s mind.