as the first and original principle of human society.  This necessity is no other than that natural appetite betwixt the sexes, which unites them together, and preserves their union, till a new tye takes place in their concern for their common offspring.  This new concern becomes also a principle of union betwixt the parents and offspring, and forms a more numerous society; where the parents govern by the advantage of their superior strength and wisdom, and at the same time are restrained in the exercise of their authority by that natural affection, which they bear their children.  In a little time, custom and habit operating on the tender minds of the children, makes them sensible of the advantages, which they may reap from society, as well as fashions them by degrees for it, by rubbing off those rough corners and untoward affections, which prevent their coalition.

For it must be confest, that however the circumstances of human nature may render an union necessary, and however those passions of lust and natural affection may seem to render it unavoidable; yet there are other particulars in our natural temper, and in our outward circumstances, which are very incommodious, and are even contrary to the requisite conjunction.  Among the former, we may justly esteem our selfishness to be the most considerable.  I am sensible, that generally speaking, the representations of this quality have been carried much too far; and that the descriptions, which certain philosophers delight so much to form of mankind in this particular, are as wide of nature as any accounts of monsters, which we meet with in fables and romances.  So far from thinking, that men have no affection for any thing beyond themselves, I am of opinion, that though it be rare to meet with one, who loves any single person better than himself; yet it is as rare to meet with one, in whom all the kind affections, taken together, do not overbalance all the selfish.  Consult common experience:  Do you not see, that though the whole expence of the family be generally under the direction of the master of it, yet there are few that do not bestow the largest part of their fortunes on the pleasures of their wives, and the education of their children, reserving the smallest portion for their own proper use and entertainment.  This is what we may observe concerning such as have those endearing ties; and may presume, that the case would be the same with others, were they placed in a like situation.

But though this generosity must be acknowledged to the honour of human nature, we may at the same time remark, that so noble an affection, instead of fitting men for large societies, is almost as contrary to them, as the most narrow selfishness.  For while each person loves himself better than any other single person, and in his love to others bears the greatest affection to his relations and acquaintance, this must necessarily produce an oppositon of passions, and a consequent opposition of actions; which cannot but be dangerous to the new-established union.