...the course of the stars; it has generated architecture and perspective, and it has generated divine painting. O most excellent thing above all others created by God! What praises could there be that might express your nobility? What peoples, what tongues will they be that could fully describe your true working? This is the window of the human body, through which its way beholds and enjoys the beauty of the world; through it the soul is content with its human prison, and without it that human prison is its torment; and through it human industry has discovered fire, by means of which the eye recovers what the darkness had first taken from it. This has adorned nature with agriculture and delightful gardens. But what need is there for me to extend myself in so lofty and long a discourse? What is there that is not done through it? It moves men from east to west; it has discovered navigation, and in this it surpasses nature, because the simple natural things are finite, whereas the works that the eye commands the hands to make are infinite, as the painter demonstrates in his feigning of infinite forms of animals, and herbs, and plants, and places.

End, as regards poetry and painting.

[29] How music should be called the sister and the younger of painting.
Music is not to be called other than the sister of painting, inasmuch as it is the subject of hearing, the second sense to the eye, and composes harmony by the conjunctions of its proportional parts performed at one and the same time, constrained to be born and to die within one or more harmonic measures, which...