The great problem of the shifting relation between passion and duty is clear to no man who is capable of apprehending it: the question, whether the moment has come in which a man has fallen below the possibility of a renunciation that will carry any efficacy, and must accept the sway of a passion against which he had struggled as a trespass, is one for which we have no master key that will fit all cases. The casuists have become a by-word of reproach; but their perverted spirit of discrimination was the shadow of a truth to which eyes and hearts are too often fatally sealed: the truth, that moral judgments must remain false and hollow, unless they
are checked and enlightened by a perpetual reference to the special
circumstances that mark the individual lot