Since you turn your thoughts a little toward trade and commerce, which I am very glad you do, I will recommend a French book to you, which you will easily get at Paris, and which I take to be the best book in the world of that kind:  I mean the ‘Dictionnaire de Commerce de Savory’, in three volumes in folio; where you will find every one thing that relates to trade, commerce, specie, exchange, etc., most clearly stated; and not only relative to France, but to the whole world.  You will easily suppose, that I do not advise you to read such a book ‘tout de suite’; but I only mean that you should have it at hand, to have recourse to occasionally.

With this great stock of both useful and ornamental knowledge, which you have already acquired, and which, by your application and industry, you are daily increasing, you will lay such a solid foundation of future figure and fortune, that if you complete it by all the accomplishments of manners, graces, etc., I know nothing which you may not aim at, and in time hope for.  Your great point at present at Paris, to which all other considerations must give way, is to become entirely a man of fashion:  to be well-bred without ceremony, easy without negligence, steady and intrepid with modesty, genteel without affectation, insinuating without meanness, cheerful without being noisy, frank without indiscretion, and secret without mysteriousness; to know the proper time and place for whatever you say or do, and to do it with an air of condition all this is not so soon nor so easily learned as people imagine, but requires observation and time.  The world is an immense folio, which demands a great deal of time and attention to be read and understood as it ought to be; you have not yet read above four or five pages of it; and you will have but barely time to dip now and then in other less important books.

Lord Albemarle has, I know, wrote {It is a pleasure for an ordinary mortal to find Lord Chesterfield in gramatical error—­and he did it again in the last sentence of this paragraph—­but this was 1751?  D.W.} to a friend of his here, that you do not frequent him so much as he expected and desired; that he fears somebody or other has given you wrong impressions of him; and that I may possibly think, from your being seldom at his house, that he has been wanting in his attentions to you.  I told the person who told me this, that, on the contrary, you seemed, by your letters to me, to be extremely pleased with Lord Albemarle’s behavior to you:  but that you were obliged to give up dining abroad during your course of experimental philosophy.  I guessed the true reason, which I believe was, that, as no French people frequent his house, you rather chose to dine at other places, where you were likely to meet with better company than your countrymen and you were in the right of it.  However, I would have you show no shyness to Lord Albemarle, but go to him, and dine with him oftener than it may be you