Sex desire is the most powerful of human desires. When driven by this desire, men develop keenness of imagination, courage, will-power, persistence, and creative ability unknown to them at other times. So strong and impelling is the desire for sexual contact that men freely run the risk of life and reputation to indulge it. When harnessed, and redirected along other lines, this motivating force maintains all of its attributes of keenness of imagination, courage, etc., which may be used as powerful creative forces in literature, art, or in any other profession or calling, including, of course, the accumulation of riches.Napoleon Hill
For more, see The Powerful Benefits of Semen Retention.