Saint Ambrose quotes:

A good youth ought to have a fear of God, to be subject to his parents, to give honor to his elders, to preserve his purity; he ought not to despise humility, but should love forbearance and modesty. All these are an ornament to youthful years.

When I go to Rome, I fast on Saturday, but in Milan I do not. Do you also follow the custom of whatever church you attend, if you do not want to give or receive scandal.

One of the duties of fortitude is to keep the weak from receiving injury; another, to check the wrong motions of our own souls; a third, both to disregard humiliations, and to do what is right with an even mind. All these clearly ought to be fulfilled by all Christians, and especially by the clergy.

Many a sin has sullied me in body and in soul because I did not restrain my thoughts nor guard my lips: nevertheless it is to Thee, O God of majesty and love, that I turn in my extremity, for Thou art the fount of mercy; to Thee, as quickly as I may, I speed: for Thou alone canst heal me; I take refuge under Thy protection.

Nothing escapes God's knowledge. This is proved by the witness of the Scriptures and the analogy of the sun, which, although created, yet by its light or heat enters into all things.

God drove Cain out of his presence and sent him into exile far away from his native land, so that he passed from a life of human kindness to one which was more akin to the rude existence of a wild beast.

God is not accustomed to refusing a good gift to those who ask for one. Since he is good, and especially to those who are faithful to him, let us hold fast to him with all our soul, our heart, our strength, and so enjoy his light and see his glory and possess the grace of supernatural joy.

It is not from your own goods that you give to the beggar; it is a portion of his own that you are restoring to him. The Earth belongs to all. So you are paying back a debt and think you are making a gift to which you are not bound.

Let us take refuge from this world. You can do this in spirit, even if you are kept here in the body. You can at the same time be here and present to the Lord. Your soul must hold fast to him, you must follow after him in your thoughts, you must tread his ways by faith, not in outward show.

Bind up thy words that they run not riot, and grow wanton, and gather up sins for themselves in too much talking. Let them be rather confined, and held back within their own banks. An overflowing river quickly gathers mud.

It is not enough just to wish well; we must also do well.

It is a better thing to save souls for the Lord than to save treasures. He who sent forth his apostles without gold had not need of gold to form his Church. The Church possesses gold, not to hoard, but to scatter abroad and come to the aid of the unfortunate.

When in Rome, live as the Romans do; when elsewhere, live as they live elsewhere.

Forget not, O Lord, that I am one of those whom Thou hast created, and with Thine own blood hast redeemed. I repent me of my sins: I will strive to amend my ways.

Take away the contests of the martyrs, and you have taken away their crowns.

God, who preferred the correction rather than the death of a sinner, did not desire that a homicide be punished by the exaction of another act of homicide.

God created the universe in such a manner that all in common might derive their food from it, and that the Earth should also be a property common to all.

A duty is to be chosen from what is virtuous, and from what is useful, and also from the comparison of the two, one with the other; but nothing is recognized by Christians as virtuous or useful which is not helpful to the future life.

It is ingrained in all living creatures, first of all, to preserve their own safety, to guard against what is harmful, to strive for what is advantageous.

Where a man's heart is, there is his treasure also.

Let there be a door to thy mouth, that it may be shut when need arises, and let it be carefully barred, that none may rouse thy voice to anger, and thou pay back abuse with abuse.

O most merciful Father, put far from me all my iniquities and all my offences; so that, by Thee made whole in body and in soul, I may be accounted worthy to approach the Holy of holies.

The best way to use the gold of the Redeemer is for the redemption of those in peril.

Nothing graces the Christian soul so much as mercy; mercy as shown chiefly towards the poor, that thou mayest treat them as sharers in common with thee in the produce of nature, which brings forth the fruits of the earth for use to all.

No one is good but God alone. What is good is therefore divine, what is divine is therefore good.

There is nothing evil save that which perverts the mind and shackles the conscience.

A kindness received should be returned with a freer hand.