又曰：「良知在夜气发的方是本体，以其无物欲之杂也。学者要使事物纷扰之时，常如夜气一般，就是『通乎昼夜之道而知』。」
又说：「良知在夜气中发动的才是本体，因为它没有物欲的夹杂。学者要使事物纷扰之时，常如夜气一般，就是『通乎昼夜之道而知』。」
He also said: 'Innate knowledge stirring in the night breath is its very substance, unmixed with thing-desire. Let the learner, amid the day's crowding affairs, keep ever as in the night breath — that is comprehending the way of day and night.'