XXXV.
As ideas are capable of infinite combination, it ought to be the same with pleasures.

XXXVI.
In the life of man there are no two moments of pleasure exactly alike, any more than there are two leaves of identical shape upon the same tree.

XXXVII.
If there are differences between one moment of pleasure and another, a man can always be happy with the same woman.

XXXVIII. To seize adroitly upon the varieties of pleasure, to develop them, to impart to them a new style, an original expression, constitutes the genius of a husband.

XXXIX. Between two beings who do not love each other this genius is licentiousness; but the caresses over which love presides are always pure.

XL.
The married woman who is the most chaste may be also the most voluptuous.

XLI.
The most virtuous woman can be forward without knowing it.

XLII. When two human beings are united by pleasure, all social conventionalities are put aside. This situation conceals a reef on which many vessels are wrecked. A husband is lost, if he once forgets there is a modesty which is quite independent of coverings. Conjugal love ought never either to put on or to take away the bandage of its eyes, excepting at the due season.

XLIII.
Power does not consist in striking with force or with frequency, but in striking true.

XLIV. To call a desire into being, to nourish it, to develop it, to bring it to full growth, to excite it, to satisfy it, is a complete poem of itself.