soon as it shows love to be in harmony
with duty, is called the honeymoon. How can it last long between two
beings who are united for their whole life, unless they know each
other perfectly? If there is one thing which ought to cause
astonishment it is this, that the deplorable absurdities which our
manners heap up around the nuptial couch give birth to so few hatreds!
But that the life of the wise man is a calm current, and that of the
prodigal a cataract; that the child, whose thoughtless hands have
stripped the leaves from every rose upon his pathway, finds nothing
but thorns on his return, that the man who in his wild youth has
squandered a million, will never enjoy, during his life, the income of
forty thousand francs, which this million would have provided--are
trite commonplaces, if one thinks of the moral theory of life; but new
discoveries, if we consider the conduct of most men. You may see here
a true image of all honeymoons; this is their history, this is the
plain fact and not the cause that underlies it.

But that men endowed with a certain power of thought by a privileged
education, and accustomed to think deliberately, in order to shine in
politics, literature, art, commerce or private life--that these men
should all marry with the intention of being happy, of governing a
wife, either by love or by force, and should all tumble into the same
pitfall and should become foolish, after having enjoyed a certain
happiness for a certain time,--this is certainly a problem whose
solution is to be found rather in the unknown depths of the human
soul, than in the quasi physical truths, on the basis of which we have
hitherto attempted to explain some of these phenomena. The risky
search for the secret laws, which almost all men are bound to violate
without knowing it, under these circumstances, promises abundant glory
for any one even though he make shipwreck in the enterprise upon which
we now venture to set forth. Let us then make the attempt.

In spite of all that fools have to say about the difficulty they have
had in explaining love, there are certain principles relating to it as
infallible as those of geometry; but in each character these are
modified according to its tendency; hence the caprices of love, which
are due to the infinite number of varying temperaments. If we were
permitted never to see the various effects of light without also
perceiving on what they were based, many minds would refuse to believe