“理”与“气”是理学中最重要的一对范畴。理与气的关系,是理学家要着重进行论述的重要内容。作为明初四子的理学大师薛瑄,在元代理学调零之后,其实起到了中兴理学的学术作用,薛瑄承继朱子理学的主要观点,对理气先后与理气关系进行了更深刻的论述。他认为他甚至走得比朱子还彻底,认为理气根本不分先后,理气有则同有,生化流行。他们之间的关系如日之载鸟,鸟虽动而日不动,但光却一直未离鸟。这种普照的观点说明了理与气的关系,理在气中,但理又不杂气。 “Reason” and “Qi” are the most important categories in Neo-Confucianism. The relationship between reason and qi is an important part of the reason that the philosopher should focus on the discussion. As a famous scholar in the early Ming dynasty, Xue Xuan, after adjusting for zero in Yuan Dynasty, actually played the academic role of ZTE. Xue Xun inherited the main viewpoints of Zhu Zi-neology and conducted a more profound exposition on the relationship between Qi and Qi respectively. He thinks he even walked more thoroughly than Zhu. He believed that there is no difference between Qi and Qi. The relationship between them, such as the day of the birds, although the fixed motion of the birds, but the light has not leave the birds. This general view shows the relationship between reason and qi, reason is in the air, but the theory is not mixed.