the way is a limitless vessel;
used by the self, it is not filled by the world;
it cannot be cut, knotted, dimmed or stilled;
its depths are hidden, ubiquitous and eternal;
i don’t know where it cces from;
it cces before nature.
老子道德经校释
金丹四百字注
金丹四百字
金丹妙诀
金丹就正篇
简帛老子校正