In their search for truth and happiness, the classical philosophers overlooked one of the most important facets of our lives—sexuality. The author rectifies this error by questioning this field of knowledge and practice: What is "good" coitus? What is a "nice" ass? What is a "legal" sexual act? What is universally "true" in sexuality? Who is "perverse?" Does sex represent a momentary pleasure, or could it embody a foundation for happiness? Using concrete examples, Sylvain Bosselet deconstructs the preconceptions that hinder our freedom and hinder sexual happiness. He seeks to lay the foundations for a philosophy of sex.