理以心得为精，故当沉潜，不然耳边口头尔；事以典故为据，故当博洽，不然臆说杜撰也。
用心体会整理才能理解精确得当，所以应当沉着稳重，不然就成了口头耳边的小事，过后就忘了。事理要以典故为依据，因此必须学识广博，否则就成了随意推测，胡编乱造。
You cannot explore the depths of the soul, even if you travel every road.
You get towards the end of life—no, not life itself, but of something else: the end of any likelihood of change in that life.