St. Ambrose, Concerning Repentance (Book II), par. 97: “Well then did the Lord say: ‘If any man will come after Me, let him deny himself, and take up his cross and follow Me.’ (Matthew 16:24) For they who are dead and buried in Christ ought not again to make their conclusions as though living in the world. ‘Touch not,’ it is said, ‘nor attend to those things which tend to corruption by their very use, for the very customs of this life corrupt integrity.’”