Quotes from Ambrose of Milan

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.

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.

Our own evil inclinations are far more dangerous than any external enemies.

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.