“ A cutting word is worse than a bowstring, a cut may heal, but the cut of the tongue does not. 一句伤人的话，强如弓弦;伤人能医好，舌伤却不能。 佚名
“ One hundred victories in one hundred battles is not the most skillful, subduing the other's military without battle is the most skillful. 是故百战百胜,非善之善者也;不战而屈人之兵,善之善者也。 Sun Tzu 孙子兵法
“ Learning without thought is labor lost; thought without learning is perilous. 学而不思则罔，思而不学则殆。 Confucius 孔子
“ Hence that general is skilful in attack whose opponent does not know what to defend; and he is skilful in defense whose opponent does not know what to attack. 故善攻者，敌不知其所守；善守者，敌不知其所攻。 Sun Tzu 孙子兵法