This is fairly and candidly stated,--only I could wish that on one point you had been a little more explicit. In the mean time, I will take it for granted, that by a "knowledge of the alphabetic characters," you confine your meaning to the single powers only, as you are silent on the subject of the diphthongs, and harder combinations. Why truly, Sir, when I consider the vast circle of sciences--it is not here worth while to trouble you with the distinction between learning and science--which a man must be understood to have made the tour of in these days, before the world will be willing to concede to him the title which you aspire to, I am almost disposed to reply to your inquiry by a direct answer in the negative. However, where all cannot be compassed, a great deal that is truly valuable may be accomplished. I am unwilling to throw out any remarks that should have a tendency to damp a hopeful genius; but I must not in fairness conceal from you, that you have much to do. The consciousness of difficulty is sometimes a spur to exertion. Rome--or rather, my dear Sir, to borrow an illustration from a place, as yet more familiar to you--Rumford--Rumford--was not built in a day. Your mind as yet, give me leave to tell you, is in the state of a sheet of white paper. We must not blot or blur it over too hastily. Or, to use an opposite simile, it is like a piece of parchment all be-scrawled and be-scribbled over with characters of no sense or import, which we must carefully erase and remove, before we can make way for the authentic characters or impresses, which are to be substituted in their stead by the corrective hand of science. Your mind, my dear Sir, again resembles that same parchment, which we will suppose a little hardened by time and disuse. We may apply the characters, but are we sure that the ink will sink? You are in the condition of a traveller, that has all his journey to begin. And again, you are worse off than the traveller which I have supposed--for you have already lost your way. You have much to learn, which you have never been taught; and more, I fear, to unlearn, which you have been taught erroneously. You have hitherto, I dare say, imagined, that the sun moves round the earth. When you shall have mastered the true solar system, you will have quite a different theory upon that point, I assure you. I mention but this instance. Your own experience, as knowledge advances, will furnish you with many parallels.