The wind rustles and the water becomes cold, and the strong man will never return once he is gone. ("Warring States Policy"

The method of reading is to proceed step by step, to read thoroughly and to think carefully. (Zhu Xi) Learn it eruditely, interrogate it, think it carefully, discern it clearly, and practice it diligently. ("Book of Rites" 》) Wealth and honor cannot be corrupted, poverty and lowliness cannot be moved, and power cannot be subdued. (Mencius) If one's body is upright, one will not obey orders; if one's body is not upright, one will not obey orders.