Catechism › PART THREE: LIFE IN CHRIST › CHAPTER ONE THE DIGNITY OF THE HUMAN PERSON › Article 8 SIN › ¶ 1872 ¶ 1872 In Brief Sin is an act Contrary to Reason. It wounds man's nature and injures human solidarity. Linked Concepts Contrary Reason Sin Son ← ¶ 1871 Browse ¶ 1873 →