"The root, which fears so much that the sky will not see it, the sun will not touch it, the air will not harm it, well aware of what its ministry is, burrows deep underground, and in its tender birth, it pierces, penetrates, branches out, and spreads: and throws out so many trunks, branches, and roots everywhere that it looks like an upside-down, buried tree: and therefore it lives because it is buried, otherwise, if you dig it up, it dies. There it is the first foundation of the [fabrica] it supports, and well suited to it, that is, for the high, deep, for the wide, spread out, for the shocks from the whirlwinds, divided and firm on every side from which the wind blows: like the masts of ships, which are held by the rigging, which, like arms, grasp it from all sides and hold it steady. In addition to this, the root is all together what [in] animals is the mouth, the belly, and the liver. It sucks in food, cooks it, transmutes it into juice, indifferent to receiving the different forms of the different parts that derive from it. (Book I, Chapter VII; 1659, p. 97)"