of them is not attended with any real pleasure, lest, satisfied with that, we should give ourselves over to indolence and inaction.  On the other hand, the generation of mankind is a great purpose, and it is requisite that men should be animated to the pursuit of it by some great incentive.  It is therefore attended with a very high pleasure; but as it is by no means designed to be our constant business, it is not fit that the absence of this pleasure should be attended with any considerable pain.  The difference between men and brutes, in this point, seems to be remarkable.  Men are at all times pretty equally disposed to the pleasures of love, because they are to be guided by reason in the time and manner of indulging them.  Had any great pain arisen from the want of this satisfaction, reason, I am afraid, would find great difficulties in the performance of its office.  But brutes that obey laws, in the execution of which their own reason has but little share, have their stated seasons; at such times it is not improbable that the sensation from the want is very troublesome, because the end must be then answered, or be missed in many, perhaps forever; as the inclination returns only with its season.

SECTION X.

OF BEAUTY.

The passion which belongs to generation, merely as such, is lust only.  This is evident in brutes, whose passions are more unmixed, and which pursue their purposes more directly than ours.  The only distinction they observe with regard to their mates, is that of sex.  It is true, that they stick severally to their own species in preference to all others.  But this preference, I imagine, does not arise from any sense of beauty which they find in their species, as Mr. Addison supposes, but from a law of some other kind, to which they are subject; and this we may fairly conclude, from their apparent want of choice amongst those objects to which the barriers of their species have confined them.  But man, who is a creature adapted to a greater variety and intricacy of relation, connects with the general passion the idea of some social qualities, which direct and heighten the appetite which he has in common with all other animals; and as he is not designed like them to live at large, it is fit that he should have some thing to create a preference, and fix his choice; and this in general should be some sensible quality; as no other can so quickly, so powerfully, or so surely produce its effect.  The object therefore of this mixed passion, which we call love, is the beauty of the sex.  Men are carried to the sex in general, as it is the sex, and by the common law of nature; but they are attached to particulars by personal beauty.  I call beauty a social quality; for where women and men, and not only they, but when other animals give us a sense of joy and pleasure in beholding them (and there are many that do so), they inspire us with sentiments of tenderness