“天地氤氲,万物化醇;男女构精,万物化生”(《易经·系辞》)。人类在大自然的物竞天择中,之所以能够生生不息,就是因为男女之间的性生活。文字的记载雄辩地说明,中国是性文明的发祥地。从理论到实践,早在春秋战国时代,就已经系统而完整地奠基,而且以今日的文明尺度加以衡量,仍是相当科学的,闪烁着真理的光辉。 “Heaven and Earth 氲 氲, all kinds of alcohol; men and women fine structure, everything is born” (“Book of Changes”). Human beings in nature’s natural selection, the reason why can be endless, because sex between men and women. The essay records eloquently that China is the birthplace of sexual civilization. From theory to practice, as early as the Spring and Autumn Period and the Warring States Period, it had been laid down in a systematic and complete manner and, still weighing on today’s civilized scales, it is still quite scientific and shining with the glorious truth.