CHRISTIAN CONSTITUTION OF STATES. 133
Church of God.^ The defence of Catholicism, indeed, necessarily demands that in the profession of doctrines taught by the Church all shall be of one mind and all steadfast in believing; and care must be taken never to connive, in any way, at false opinions, never to withstand them less strenuously than truth allows. In mere matters of opinion it is permissible to discuss things with moderation, with a desire of searching into the truth, without unjust suspicion or angry recriminations.
Hence, lest concord be broken by rash charges, let this be understood by all, that the integrity of Catholic faith cannot be reconciled with opinions verging on Natural- ism or Rationalism, the essence of which is utterly to sterilize Christianity, and to instal in society the supremacy of man to the exclusion of God. Further, it is unlawful to follow one line of conduct in private 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.
But in matters merely political, as for instance the best form of government, and this or that system of adminis- tration, a difference of opinion is lawful. Those, therefore, whose piety is in other respects known, and whose minds are ready to accept in all obedience the decrees of the Apostolic See, cannot in justice be accounted as bad men because they disagree as to subjects We have mentioned; and still graver wrong will be done them, if — as We have more than once perceived with regret — they are accused of violating, or of wavering in, the Catholic faith.
Let this be well borne in mind by all who are in the habit of publishing their opinions, and above all by journahsts. In the endeavor to secure interests of the highest
^Acts XX. 28.
