This parity is no more than the physical part of imitation, and not so complete as the similitude, from which, however, it proceeds as an immediate effect. The ape resembles man more in his body and limbs than in the use he makes of them. By observing the ape attentively we shall perceive that all his motions are sudden, intermittent, and precipitate; and to compare them with those of man we must suppose a different model. Every action of the ape strongly partakes of his education, which is purely animal; and they appear to be extravagant, ridiculous, and inconsequential, because we judge of them by our own, which is a false comparison. As his nature is vivacious, his temperament warm, his disposition petulant, and none of his affections have been polished by education, all his habitudes are excessive, and more resemble the actions of a lunatic than those of a man, or even those of a peaceable animal: from the same reason we find him indocile, and receiving with difficulty the impressions we wish him to imbibe. He is insensible to kindness, and only to be rendered obedient through fear of chastisement. He may be kept in captivity, but not in a domestic state. Always sullen, stubborn, or making grimaces, he may rather be said to be subdued than tamed; therefore none of this species has ever been domesticated in any part of the world, and consequently is more distant from man than most other animals, for docility supposes some analogy betwixt the giver and the receiver of instruction; a relative quality, which cannot be exercised but when there is a certain number of common faculties in both, which only differ from each other because they are active in the master and passive in the scholar. Now the passive qualities of the ape have less relation to the active qualities of man than those of the dog or elephant, who only require good treatment to receive the kind and even delicate sentiments of a faithful attachment, voluntary obedience, grateful service, and an unreserved and ready attention to the commands of their master. The ape is, therefore, further removed from the human species in relative qualities, than most other animals: He likewise differs greatly by temperament. The human species can dwell in every climate; he lives and multiplies in the northern as well as in the southern regions; but the ape lives with difficulty in temperate countries, and can only multiply in the hottest parts of the earth. This difference of temperament supposes others in organization, which though concealed, are no less real; it must also have a great influence on his natural dispositions. The excess of heat so necessary to this animal renders all his affections, and all his qualities, excessive; and we need not seek for any other cause to account for his petulance, his lubricity, and his other passions, which seem to be as violent as they are extravagant.