Author's Preface 
You have frequently asked me to write something about your former companion, Dominic Savio; and now I have done what I could to satisfy your desire. Here is his life, described with that brevity and simplicity which I know is most acceptable to you.
There were two difficulties in the way of publishing this work; first there was the criticism to which one is exposed, who describes what was performed under the eyes of many witnesses. I think I have overcome this by determining to narrate only what has been observed by you or by myself, and which I keep preserved in your own writing.
The other obstacle was the necessity of often mentioning myself, for as Dominic was three years in this House, I must necessarily refer to things with which I am personally connected. This I think I have overcome by adhering strictly to the duty of an historian, which is to present the statement of facts, irrespective of the persons concerned. But if, here and there, I should appear to speak too openly of myself, you must put it down to my regard for the boy who has gone, and for all of you besides; for this affection makes me open my heart to you, as a father does when speaking to his children.
Some of you may wonder why I have prepared a Life of Dominic Savio, and not of other youths who were here at school, and lived lives of eminent virtue. It is quite true that Divine Providence deigned to send us several boys who were examples of holiness, such as Gabriel Fascio, Louis Rua, Camillus Gavio, John Massiglia and others; but the incidents connected with these are not so conspicuous and remarkable as those of Savio, whose whole life was wonderful. However, if God gives me health and grace, I intend to publish a collection of facts concerning these other companions, both to satisfy your desires and my own, and so that you may imitate what may be compatible with your state. In this edition I have inserted several new accounts, which will increase the interest of those who have read the former editions.
But I would ask you to try to draw profit from what I am going to describe; say with St. Augustine: si ille, cur non ego? If a companion of mine, of my age and circumstances, exposed to the same or even greater difficulties, could yet remain a faithful disciple of Christ, why cannot I do the same? Remember that true religion is not a matter of words; there must be deeds. Hence, if you find something related worthy of admiration, do not be satisfied with saying: I like that, or that is very good; but rather say: I want to put into practice what I see is praiseworthy in others.
May God grant you, and all the readers of this book, strength and grace to draw profit from what is therein contained; and may Our Blessed Lady, to whom Dominic was so devout, obtain for us all one heart and mind in serving God, who alone is worthy of being loved above all things, and faithfully served during our whole life.