Tertullian

For how can the intellect be superior to the senses, when it is these which educate it for the discovery of various truths? It is a fact, that these truths are learned by means of palpable forms; in other words, invisible things are discovered by the help of visible ones, even as the apostle tells us in his epistle: "For the invisible things of Him are clearly seen from the creation of the world, being understood by the things that are made; " and as Plato too might inform our heretics: "The things which appear are the image of the things which are concealed from view," whence it must needs follow that this world is by all means an image of some other: so that the intellect evidently uses the senses for its own guidance, and authority, and mainstay; and without the senses truth could not be attained.