commissaries appointed for that purpose; to whom they are accountable; the method of recruiting, completing, etc. The same in civil matters: inform yourself of the jurisdiction of a court of justice; of the rules and numbers and endowments of a college, or an academy, and not only of the dimensions of the respective edifices; and let your letters to me contain these informations, in proportion as you acquire them. I often reflect, with the most flattering hopes, how proud I shall be of you, if you should profit, as you may, of the opportunities which you have had, still have, and will have, of arriving at perfection; and, on the other hand, with dread of the grief and shame you will give me if you do not. May the first be the case! God bless you! LETTER LXIV LONDON, February 7, O. S. 1749. DEAR BOY: You are now come to an age capable of reflection, and I hope you will do, what, however, few people at your age do, exert it for your own sake in the search of truth and sound knowledge. I will confess (for I am not unwilling to discover my secrets to you) that it is not many years since I have presumed to reflect for myself. Till sixteen or seventeen I had no reflection; and for many years after that, I made no use of what I had. I adopted the notions of the books I read, or the company I kept, without examining whether they were just or not; and I rather chose to run the risk of easy error, than to take the time and trouble of investigating truth. Thus, partly from laziness, partly from dissipation, and partly from the 'mauvaise honte' of rejecting fashionable notions, I was (as I have since found) hurried away by prejudices, instead of being guided by reason; and quietly cherished error, instead of seeking for truth. But since I have taken the trouble of reasoning for myself, and have had the courage to own that I do so, you cannot imagine how much my notions of things are altered, and in how different a light I now see them, from that in which I formerly viewed them, through the deceitful medium of prejudice or authority. Nay, I may possibly still retain many errors, which, from long habit, have perhaps grown into real opinions; for it is very difficult to distinguish habits, early acquired and long entertained, from the result of our reason and reflection.