"To prevent the immense evils of self-pollution, therefore, in our boys and students ... They should always subsist on a plain, simple, unstimulating, vegetable, and water diet; and care should be taken that they do not eat too fast, and are not excessive, in quantity. They should never be kept too long a time in a sitting, confined, or inactive posture. They should never sleep on feathers."
—Sylvester Graham, Lectures on Chastity (1834)
America's recent experience with abstinence-only sex education is merely the latest chapter in our long, sometimes ridiculous (to modern eyes, anyway) history of efforts to control humankind's most basic drive.