“Sex life, intoxication and meat eating are general tendencies of human society, but a regulated householder does not indulge in unrestricted sex life and other sense gratifications. Marriage on principles of religious life is therefore current in all civilized human society because that is the way for restricted sex life. This restricted, unattached sex life is also a kind of yajna because the restricted householder sacrifices his general tendency toward sense gratification for higher transcendental life.” (Shrila Prabhupada, Bhagavad-gita, 4.26 Purport)