given of this Operation, in all the higher, as well as lower Classes of sensitive Beings, that fall under our Notice and Observation.
But tho' Animals learn many Parts of their Knowledge from Observation, there are also many Parts of it, which they derive from the original Hand of Nature, which must exceed the Share of Capacity they possess on ordinary Occasions, and in which they improve, little or nothing, by the longest Practice and Experience. These we denominate Instincts, and are so apt to admire, as something very extraordinary, and inexplicable by all the Disquisitions of human Understanding. But our Wonder will, perhaps, cease or diminish; when we consider, that the experimental Reasoning itself, which we possess in common with Beasts, and on which the whole Conduct of Life depends, is nothing but a Species of Instinct or mechanical Power, that acts in us unknown to ourselves, and in its chief Operations; is not directed by any such Relations or Comparisons of Ideas, as are the proper Objects of our intellectual Faculties. Tho' the Instinct be different, yet still 'tis an Instinct, which teaches a Man to avoid the Fire; as much asthat,
