<p class="ql-block"><span style="font-size:22px;">岐伯曰:男女水火之精气相合而成胎,水火气弱生女,水火气强生男。女先泄精成男,男先泄精成女。所生男女有强有弱,皆源于父母之精气强弱矣,气长则寿,气促则夭。</span></p><p class="ql-block"><span style="font-size:22px;"> 肾藏精,亦藏气,藏五脏六腑之精气。精有形而气无形,无形隐于有形,故能动能静,动则化,化则技巧出成胎矣。</span></p>