Leo XIII, 1878-1903

very rightly is it called "the liberty of ruin" ¹ by Augustine, and "a cloak of malice" by the Apostle Peter [I Pet. 2:16]; rather, since it is beyond reason, it is true slavery, for "whosoever committeth sin, is the servant of sin" [John 8:34]. On the other hand, that liberty is genuine and to be sought after, which, from the point of view of the individual, does not permit man to be a slave of errors and passions, most abominable masters, if it guides its citizens in public office wisely, ministers gen- erously to the opportunity for increasing means of well-being, and pro-

1877. tects the state from foreign influence.—This liberty, honorable and worthy of man, the Church approves most of all, and never ceases to strive and struggle for its preservation sound and strong among the nations.—In fact, whatever is of the greatest value in the state for the common welfare; whatever has been usefully established to curb the license of rulers who do not consult the people's good; whatever prevents highest authority from improperly invading municipal and family affairs; whatever is of value for preserving the dignity, the person of man, and the quality of rights among individual citizens, of all such things the records of past ages testify that Catholic Church has always been either the discoverer, or the promoter, or the protector. Therefore, always consistent with herself, if on the one hand she rejects immoderate liberty, which for individuals and states falls into license or slavery, on the other hand she willingly and gladly embraces the better things which the day brings forth, if they truly contain prosperity for this life, which is, as it were,

1878. a kind of course to that other life which is to remain forever. Therefore, when people say that the Church is envious of the more recent political systems, and indiscriminately repudiates whatever the genius of these times has produced, it is an empty and groundless calumny. Indeed, she does repudiate wild opinions; she does disapprove nefarious zeal for seditions, and expressly that habit of mind in which the beginnings of a voluntary departure from God are seen; but since all that is true must come from God, she recognizes whatever has to do with the attaining of truth as a kind of trace of the divine intelligence. And, since there is nothing of truth in the natural order which abrogates faith in teachings divinely transmitted, but many things which confirm it; and since every discovery of truth can lend force to the knowledge and praise of God, accordingly whatever contributes to the extension of the boundaries of knowledge will always do so to the pleasure and joy of the Church; and just as is her custom in the case of other branches of knowledge, so will she also favor and promote those which are concerned with the investiga- tion of nature.

1879. In these studies the Church is not in opposition if the mind discovers