CCC 2342
Life in Christ›SECTION TWO THE TEN COMMANDMENTS›CHAPTER TWO YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF›II. The Vocation to Chastity
Self-mastery is a long and exacting work. One can never consider it acquired once and for all. It presupposes renewed effort at all stages of life. The effort required can be more intense in certain periods, such as when the personality is being formed during childhood and adolescence.