But why not let _science correct itself_? Why these violent condemnations and indictments? Science, by virtue of its instinct for the truth will by itself find the way back, when it has gone on the wrong track; only be patient. Science has in itself the cure for all its defects. Has it not already all by itself overcome numerous errors in the course of the centuries? Indeed, were there nothing at stake but scientific theories they might be readily left to themselves: the loss to mankind would not be great. But here there are more important issues at stake. The protection of the faith, of truths of the vastest importance for Christian life and the souls of men. And it is the duty of the Church to protect her charges from going astray, from dangers to salvation. How many thousands of them would suffer harm before it would please science to correct its heresies! It often takes a long time to pull down the idols placed upon pedestals, and then it may be only to erect another idol. How long will it take modern philosophy to agree that the will of man is free, that there is a substantial immortal soul, that a Creator of the world dwells above the heavens? Is the Church to wait till the men of science make up their minds to desist from denying the existence of a personal God, and to bow before the Creator of heaven and earth? Should she meanwhile look on calmly how such ruinous doctrines are pervading and penetrating society deeper and deeper? Souls cannot wait thus to suffer shipwreck. Finally, the duty to believe remains the same for all, for the scientist, too—he is not free to delay his assent until he has exhausted all his antagonistic scientific experiments.