OHC 81.3
(Our High Calling 81.3)
Let none flatter themselves that the sins of their youth can easily be given up by and by. This is not so. Every sin cherished weakens the character and strengthens the habit; and physical, mental, and moral depravity result. You may repent of the wrong you have done, and set your feet in right paths; but the mold of your mind and your familiarity with evil will make it difficult for you to distinguish between right and wrong. Through the wrong habits you have formed Satan will assail you again and again. (OHC 81.3) MC VC