While I view the advances which are making in the knowledge of the arts and sciences, with the pleasure of which you speak, I am apprehensive that the propensity "to chain down the human mind to its present attainments, and thereby prevent all further improvements," relative to moral truth, may have its rise in a principle, which, so far from being inimical to man, is, in its general tendency, incalculably beneficial. No desire is entertained to justify all the zeal and all the means which are employed to prevent the free exercise of the human mind, in its researches after divine knowledge, and to retard the influx of that light which would prove unfavourable to doctrines which have little more than prescription for their support; but it seems reasonable to make a proper distinction between what may be called a salutary principle in the human mind, and a wrong application or an erroneous indulgence of it. The principle referred to, inclines us not only to hold in the highest veneration any improvements which we have made, but also to retain such acquisitions in their purity. Now it is believed that what you complain of, has its rise from the foregoing causes, and is nothing more than a wrong or an erroneous indulgence of a natural desire which in its general tendency is advantageous. Nothing is more incident to man, than to misapply his desires, and to overate his reasonable duty. But it is at the same time believed that a remedy of such defects which should consist in the destruction of those principles which are improperly acted on, would be worse than the disorder. And now the thought strikes me, that the way by which we account for the improprieties which have just been traced up to their causes, will as charitably account for what seems to incite you to aim a fatal stroke at a fabric which has its foundation in the immovable principles of our moral nature, and which, though through the wanderings of the human mind, may have not a little hay, wood and stubble, yet possess too much gold, silver and precious stones, to be forsaken as a pile of rubbish.