Dionysius the Areopagite
"The simple, absolute and immutable mysteries of divine Truth are hidden in the super-luminous darkness of that silence which revealeth in secret. For this darkness, though of deepest obscurity, is yet radiantly clear; and, though beyond touch and sight, it more than fills our unseeing minds with splendours of transcendent beauty. . . .
"We long exceedingly to dwell in this translucent darkness and, through not seeing and not knowing, to see Him who is beyond both vision and knowledge--by the very fact of neither seeing Him nor knowing Him.
"For this is truly to see and to know and, through the abandonment of all things, to praise Him who is beyond and above all things. For this is not unlike the art of those who carve a life-like image from stone; removing from around it all that impedes clear vision of the latent form, revealing its hidden beauty solely by taking away. For it is, as I believe, more fitting to praise Him by taking away than by ascription; for we ascribe attributes to Him, when we start from universals and come down through the intermediate to the particulars. But here we take away all things from Him going up from particulars to universals, that we may know openly the unknowable, which is hidden in and under all things that may be known. And we behold that darkness beyond being, concealed under all natural light."
(translation by C. E. Rolt)