The sun gives spirit and life to the plants and the earth nourishes them with moisture.
Leonardo da VinciThe vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.
Leonardo da VinciAmong the great things which are found among us the existence of Nothing is the greatest.
Leonardo da VinciTo such an extent does nature delight and abound in variety that among her trees there is not one plant to be found which is exactly like another; and not only among the plants, but among the boughs, the leaves and the fruits, you will not find one which is exactly similar to another.
Leonardo da VinciLet the painter composing narrative pictures take pleasure in wealth and variety, and avoid repeating any part that occurs in it, so that the uniqueness and abundance attract people to it and delight the eye of the observer. I say that a narrative painting requires (depending on the scene), wherever the eye falls, a mixture of men of diverse appearances, of diverse ages and dress, combined together with women, children, dogs, horses, buildings, fields, and hills.
Leonardo da Vinci