7 In French Catholics the religious sentiment should be even deeper and more universal because they have the happiness of belonging to the true religion. If, indeed, religious beliefs were, always and everywhere, given as a basis of the morality of human actions and the existence of all well-ordained society, it is evident that the Catholic religion, by the mere fact that it is the true Church of Jesus Christ, possesses, more than any other, the efficacy required for the regulation of life in society and in the individual. Would you have a brilliant example of this? France herself furnishes the same. . . . In proportion as France progressed in the Christian faith she was seen to rise gradually to the moral greatness which she attained as a political and military power. To the natural generosity of her heart Christian charity came and added an abundant source of new energy; her wonderful activity received still greater impetus from contact with the light that guides and is the pledge of constancy, the Christian faith, which, by the hand of France, traced such glorious pages in the history of mankind. And even to-day does not her faith continue to add new glories to those of the past? We behold France, inexhaustible in her genius and resources, multiplying works of charity at home; we admire her enterprises in foreign lands where, by means of her gold and the labors of her missionaries who work even at the price of their blood, she simultaneously propagates her own renown and the benefits of the Catholic religion. No Frenchman, whatever his convictions in other respects, would dare to renounce glory such as this, for to do so would be to deny his native land.
Source: Au Milieu Des Sollicitudes (Vatican.va)