But why, then, some may ask, are animal propensities given us, if they are not to be indulged? The appropriate reply is, they _are_ to be indulged; but it is only in accordance with the laws of God; never otherwise. And the wisdom of these laws, did they not rest on other and better proof, is amply confirmed by that great body of medical experience already mentioned. God has delegated to man, a sort of _subcreative_ power to perpetuate his own race. Such a wonderful work required a wonderful apparatus. And such is furnished. The texture of the organs for this purpose is of the most tender and delicate kind, scarcely equalled by that of the eye, and quite as readily injured; and this fact ought to be known, and considered. But instead of leaving to human choice or caprice the execution of the power thus delegated, the great Creator has made it a matter of _duty_; and has connected with the lawful discharge of that duty, as with all others, _enjoyment_. But when this enjoyment is sought in any way, not in accordance with the laws prescribed by reason and revelation, we diminish (whatever giddy youth may suppose,) the sum total of our own happiness. Now this is not the cold speculation of age, or monkish austerity. It is sober matter of fact. It is said that young men are sometimes in circumstances which forbid their conforming to these laws, were they disposed to do so. Not so often however, as is commonly supposed. Marriage is not such a mountain of difficulty as many imagine. This I have already attempted to show. One circumstance to be considered, in connection with this subject, is, that in any society, the more there is of criminal indulgence, whether secret or social, the more strongly are excuses for neglecting matrimony urged. Every step which a young man takes in forbidden paths, affords him a plea in behalf of the next. The farther he goes, the less the probability of his returning to the ways of purity, or entering those of domestic felicity. People in such places as London and Paris, marry much later in life, upon the average, than in country places. And is not the cause obvious? And is not the same cause beginning to produce similar effects in our own American cities?