In his New Essays on Human Understanding, Leibniz presents an extended critical commentary on Locke’s Essay Concerning Human Understanding. Leibniz read some of Locke’s work in English and then, a few years later, the whole of it in French, a language in which he was more comfortable. Over a period of about two further years, on and off, he wrote his New Essays, which he finished at about the time Locke died and which was not published until about half a (...) century after Leibniz’s death. (He left them unpublished partly because they had been motivated by a hope of getting Locke to reply, and Locke’s death put an end to that; though his character made it a forlorn hope in any case.) The New Essays has been an important work: for one thing, Kant read it on its first appearance, and scholars say that this was a decisive event in his philosophical development. Anyway, given that this is one of Leibniz’s only two philosophical works of substantial book length, in all the torrent that poured from his pen, and given also that it is focused - critically but with respect and careful attentiveness - on the greatest classic of English philosophy, it is surprising that the New Essays had to wait until 1981 for a usable English translation.1 In 1896 there was published a sort of translation by A. G. Langley;2 but it is inaccurate far beyond the bounds of normal incompetence, as well as being grimly unreadable for stylistic reasons. As Chesterton once said about The Origin of Species, it is surprising how many people think they have read it, but I'll bet that nobody alive has slogged through the Langley version from cover to cover. It is a pity that the work was not decently available in English for nearly three centuries, because even for those who can read the French of, say, Descartes, Leibniz’s French is difficult. He reserved his native German for writings on history and politics, using French and Latin for philosophy and mathematics; presumably French was chosen for the New Essays because Leibniz wanted to respond to a popular work by a popular work.. (shrink)