给学生一些事情去做，而不是一些东西去学；而这些事情的性质需要思考；学习会自然而然地发生。
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
We must design products with their end-of-life in mind from the very beginning.
战略管理不是一门科学，而是一门艺术。
你在20多岁所做的事情将塑造你的未来。
根本不稳固必然会央及枝叶。行为不守信必然会损害声誉。