Mencius uses mountain trails as a metaphor to warn disciple Gaozi: constant practice clears one’s moral mind, yet neglect lets weeds of desire block it. He reminds people to sustain unceasing self-cultivation to avoid spiritual stagnation.
Zengzi passes on Confucius’ comment: Meng Zhuangzi’s ordinary filial deeds are easy to imitate, yet his restraint to retain his late father’s officials and policies stands as rare, supreme filial piety integrating morality and stable governance.