每个数学问题都有一个解决方案;你只需要找到正确的视角。
Every mathematical problem has a solution; you just need to find the right perspective.
国君自以为神圣聪明,而不去咨询官吏,自以为国家安定强大,而不注重防守,周围的邻国图谋侵略他却不知道戒备。 
Profitability without responsibility is the most short-sighted business strategy.