The human being is supposed to take counsel with his own principles of modesty, of chivalry, and of shame, and therein to differ from the animals; and that expression of his sexual passion which has no regard for these principles may be called adultery. Adultery is in fact that which, done under the spell of passion and in the blindness of the moment, brings afterwards repentance and shame, with remorse for the consequences. A drunken man does in his intoxication what he would never have done when sober; and so laws are framed to control drunken madness and folly.