明朝人吕坤说:“防欲如挽逆水之舟,才歇力便下流;力善如缘无枝之树,才住脚便下坠。是以君子之心无时而不敬畏也。”意思是说,防止欲望就好像是在挽拉那行驶在逆水中的舟船,才歇下力便会往下流去;极力做善事好像是在攀缘那没有枝杈的树木,才停住脚步便会往下坠落。所以,君子的心 The Ming Dynasty Lv Kun said: “Anti-desolation, such as the boat against the water, it is reluctant to sub-flow; force good as the edge of a tree without a branch, it lives on the ground to fall .A gentleman’s heart from time to time without awe.” That is to say, preventing desires is like trying to pull away the boat that runs in the reverse stream, and then it will flow downwards. Trying hard to do good deeds seems to be climbing the tree without branches until it stops. Fall down. So gentleman’s heart