True love never changes. From its nature it can not. It being that impulse which indicates an affectional need, it must be as unchanging as the soul and God. Take that known as maternal love, and who that has known a mother’s love will say that it demands for its life and continuance variety and change? Tell the mother, as she presses her first-born to her bosom, that she will soon demand change and variety to keep alive her maternal affection, and she would reply in the language of Macduff, “He has no children.” No, of all things else, true love will admit of no change, no variety. In no affectional relation, save that of husband and wife, would the free lover admit that love required change or variety. In the parental, fraternal, filial, and social relations that doctrine does not apply. The parent loves his child, and feels no demand for variety. What would be thought of that mother who should tire of loving her child, and give as an excuse that her tastes had changed; that once her child was suited to her maternal affection; but that now her maternal love had changed its character and quality, and demanded a corresponding change on the part of the object of its affection? It requires no argument to show that such can never be the requirements of maternal love. The same is true of every other manifestation of the affectional principle. Fraternal, filial, and social love will admit of no change; demand no variety. The brother and sister can love on and love forever; the parent and child can do the same; and true friendship abides in constancy of affection. But _lust_ demands variety, and consequently change. When the true impulse is overlooked, and self-gratification becomes the end in pursuit, then comes with it the demand for variety. This is seen in eating and drinking. Hunger and thirst only call for simple food and drink. They will supply the demand. But the moment gratification is consulted, then great must be the change and large the variety. And by far the largest amount of labor and expense is bestowed upon gratification.