The essay separates general ethics from sexual instinct, contending that sexuality is neither inherently moral nor immoral but can create ethical conflicts because it involves other people. It surveys private and public responses—personal restraint and the transmutation of sexual energy, endorsement of monogamy and shared parental responsibility, criticism of prostitution and alcohol as social harms, and advocacy for public-health measures against contagious sexual diseases. The central concern is protecting offspring and communal wellbeing through preventive medicine, social reform, and considered reproductive responsibility.