[[1]] Puer, child; infans, one who does not speak.
[[2]] Reading these lines, we are reminded of the admirable works of Dickens, the celebrated English novelist, who so touchingly depicts the sufferings of children made unhappy by the inhumanity of teachers, or neglected as to their need of free air, of liberty, of affection: David Copperfield, Hard Times, Nicholas Nickleby, Dombey and Son, Oliver Twist, Little Dorrit, and the like.
[[3]] Here he means Xerxes, King of Persia, who had built an immense bridge of boats over the Hellespont to transport his army from Asia into Europe. A storm having destroyed this bridge, the all-powerful monarch, furious at the insubordination of the elements, ordered chains to be cast into the sea, and had the rebellious waves beaten with rods.
[[4]] The feeling of a republican, of the "citizen of Geneva," justly shocked by monarchial superstitions. Louis XIV. and Louis XV. had had, in fact, from the days of their first playthings, the degrading spectacle of a universal servility prostrated before their cradle. The sentiment here uttered was still uncommon and almost unknown when Rousseau wrote it. He did much toward creating it and making it popular.