In 1905 an apostolic letter to the Italian bishops defined still more clearly the lines of Catholic social action. "Such," he says, "is the power of the truth and morality taught by Jesus Christ, that even the material well-being of individuals, of the family and of human society receive support and protection." The civilization of the world is Christian civilization; the more frankly Christian, the more frankly true, the more lasting and the more productive of good fruit; the more it withdraws from the Christian ideal, so much the feebler does it become, to the great detriment of society. The Church has been throughout the ages the guardian and protector of Christian civilization. "What prosperity and happiness, what peace and concord, what respectful submission to authority, what excellent government would be established and maintained in the world if the perfect ideal of Christian civilization could be everywhere realized. But given the constant warfare of flesh with spirit, of darkness with light, of Satan with God, so great a good in its full measure can scarcely be hoped for. Yet this is no reason for losing courage. The Church goes fearlessly on, and while extending the Kingdom of God in places where it has not yet been preached, she strives by every means to repair the losses inflicted on the Kingdom already acquired." Once more the only means that can achieve the desired end are clearly pointed out: "To reinstate Jesus Christ in the family, the school and society; to re-establish the principle that human authority represents that of God; to take closely to heart the interests of the people, especially those of industrial and agricultural workers, to endeavour to make laws conformable to justice, to amend or suppress those which are not so . . . to defend and support the rights of God in everything, and the no less sacred rights of the Church." "What can I do for the Church?" asked a lady of Pius X at a private audience. "Teach the catechism," was the prompt and perhaps rather unexpected reply.