或疑知行不合一，以「知之匪艰」二句为问。
先生曰：「良知自知，原是容易的。只是不能致那良知，便是『知之匪艰，行之惟艰』。」
有人疑心知行不一，拿「知之匪艰，行之惟艰」两句来问。
先生说：「良知自己知道，原是容易的。只是不能去致那良知，便是『知之匪艰，行之惟艰』。」
Someone doubting the unity of knowledge and action cited knowing is not hard, doing is.
The Master said: 'Innate knowledge's own knowing was ever easy. Only failing to extend that knowledge is knowing not hard, doing hard.'