The audacity of the man would have seemed sublime if she had felt sure that he knew the difference between good and evil, between a lie and the truth; but the more she saw of him, the surer she was that his courage was mere moral paralysis, and that he talked about virtue and vice as a man who is colour-blind talks about red and green; he did not see them as she saw them; if left to choose for himself he would have nothing to guide him. Was it politics that had caused this atrophy of the moral senses by disuse? Meanwhile, here she sat face to face with a moral lunatic.

Madeleine Lee assessing Senator Silas P. Ratcliffe in Ch. XIII - Democracy: An American Novel (1880)