text: Hence indeed it is evident that these animals have not reached such a condition through experience; it is because of an inborn desire for self-preservation. The teachings of experience are slow and irregular; but whatever Nature communicates belongs equally to everyone, and comes immediately. If, however, you require an explanation, shall I tell you how it is that every living thing tries to understand that which is harmful? It feels that it is constructed of flesh; and so it perceives to what an extent flesh may be cut or burned or crushed, and what animals are equipped with the power of doing this damage; it is of animals of this sort that it derives an unfavourable and hostile idea. These tendencies are closely connected; for each animal at the same time consults its own safety, seeking that which helps it, and shrinks from that which will harm it. Impulses towards useful objects, and revulsion from the opposite, are according to nature; without any reflection to prompt the idea, and without any advice, whatever Nature has prescribed, is done.