The material production and the production of mankind itself in human society are the 2major pillars of social development. The latter is completed through the intercourse between both sexes. We have published the special topic of Cracking the Mystery of Sex Culture in West China in this issue in an attempt to remind people to smash the shackles of the age-old feadal ideas and to gain a correct understanding of the rich connotation of sex culture and warn them not only to pay attention to sex hygiene, sex science, to strictly guard against the spread of venereal disease and AIDS and but also to follow the principle of acquiring delight from sex and to facilitate the stability and prosperity of the society and family in West China so that sex science will shine with rays beneficial to the physical and mental health of people.
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