There cannot be found, in all creation, a single law which is not counterbalanced by a law exactly contrary to it; life in everything is maintained by the equilibrium of two opposing forces.  So in the present subject, as regards love, if you give too much, you will not receive enough.  The mother who shows her children her whole tenderness calls forth their ingratitude, and ingratitude is occasioned, perhaps, by the impossibility of reciprocation.  The wife who loves more than she is loved must necessarily be the object of tyranny.  Durable love is that which always keeps the forces of two human beings in equilibrium.  Now this equilibrium may be maintained permanently; the one who loves the more ought to stop at the point of the one who loves the less.  And is it not, after all the sweetest sacrifice that a loving heart can make, that love should so accommodate itself as to adjust the inequality?

What sentiment of admiration must rise in the soul of a philosopher on discovering that there is, perhaps, but one single principle in the world, as there is but one God; and that our ideas and our affections are subject to the same laws which cause the sun to rise, the flowers to bloom, the universe to teem with life!

Perhaps, we ought to seek in the metaphysics of love the reasons for the following proposition, which throws the most vivid light on the question of honeymoons and of Red-moons: 

THEOREM.

Man goes from aversion to love; but if he has begun by loving, and
afterwards comes to feel aversion, he never returns to love.

In certain human organisms the feelings are dwarfed, as the thought may be in certain sterile imaginations.  Thus, just as some minds have the faculty of comprehending the connections existing between different things without formal deduction; and as they have the faculty of seizing upon each formula separately, without combining them, or without the power of insight, comparison and expression; so in the same way, different souls may have more or less imperfect ideas of the various sentiments.  Talent in love, as in every other art, consists in the power of forming a conception combined with the power of carrying it out.  The world is full of people who sing airs, but who omit the ritornello, who have quarters of an idea, as they have quarters of sentiment, but who can no more co-ordinate the movements of their affections than of their thoughts.  In a word, they are incomplete.  Unite a fine intelligence with a dwarfed intelligence and you precipitate a disaster; for it is necessary that equilibrium be preserved in everything.

We leave to the philosophers of the boudoir or to the sages of the back parlor to investigate the thousand ways in which men of different temperaments, intellects, social positions and fortunes disturb this equilibrium.  Meanwhile we will proceed to examine the last cause for the setting of the honeymoon and the rising of the Red-moon.