Get control of your imagination. Be lord over your thoughts. You cannot, as an old Puritan writer says, "prevent the birds from flying over your head, but you can prevent them making their nests in your hair." Which means that while you may not be able to prevent given thoughts from darting into the mind, you can forbid their finding a home there. The danger is not in what comes, but in what is permitted to stay. You have some sense of the training that is needed in certain parts of your nature; and if you join that training to the help of God, you can not only cast evil cravings out of your life, you can do something that is harder still--you can keep them out. Be careful about companionships. Have no friendship with him who boasts of his "amours," the "affairs of the heart," that he can sustain at the same time. Shun, as you would a pestilence, the man of unclean speech. Let it be a truth with you which must not be questioned, that the truest indication of nobility of character is reverence for womanhood. By the sweet and holy thoughts of your mother, by your sacred love and wishes for your sister, I would remind you of words in which the "wisdom of many buried ages lingers": "Keep innocence, keep purity, and do the thing which is right, so shalt thou be brought at the last to thine end in peace." May you watch and pray, that you yield not to temptation. May you watch and pray, that you enter not eternity with that stain upon the soul which no tears of your own can ever wash away, or time blot out of the memory. Another way in which we may defile this temple of the body is by the habit of Betting. We usually speak of "betting and gambling," but the latter term includes and covers transactions so wide in extent, and complex in their nature, as to make it impossible for me in this address to do more than refer to them.