Leo XIII, Immortale Dei, “On the Christian Constitution of States,” paragraph 47: “It is unlawful to follow one line of conduct in private life and another in public, respecting privately the authority of the Church, but publicly rejecting it; for this would amount to joining together good and evil, and to putting man in conflict with himself; whereas he ought always to be consistent, and never in the least point nor in any condition of life to swerve from Christian virtue.”