"It seems evident that animals as well as men learn many things from experience, and infer that the same events will always follow from the same causes. By this principle they become acquainted with the more obvious properties of external objects, and gradually, from their birth, treasure up a knowledge of the nature of fire, water, earth, stones, heights, depths etc. and of the effects which result from their operation"

The ignorance and inexperience of the young are clearly obvious from the sly and wisdom of the old, who have learned, by long examination to avoid what hurt them, and to follow what gave ease. For example, a horse, that has been familiar to the field, becomes familiar with the proper height which he can leap, and will never attempt what exceeds his force and ability. Hume says that the animal infers some fact past what immediately strikes his senses, and that this inference is in total founded on past experience. Both human and animals learn many things from experience. We observe.