Until today I was certain that even the feeblest Intellect, or at any rate those capable of the written Composition of Speech, would be aware that Ocular Rays emitted by our Eyes, which, upon reflecting from external Matter, return Hermes-like to intelligence our Minds, are responsible for the Faculty of Vision; however, to my unfathomable Sorrow and Disappointment, your Missive of today (which has reached me most indisposed) illustrates that this was but a forlorn Hope.