在软件开发中，我们必须始终注意性能、复杂性和可维护性之间的权衡。

To tax the larger incomes at a higher percentage than the smaller， is to lay a tax on industry and economy； to impose a penalty on people for having worked harder and saved more than their neighbors.

艺术是可见与不可见之间的桥梁。

教师必须为形成较好人类而献出一切。

【释义】财富的增长在于方法和策略，不在于身体的辛劳；利益的获取在于地位和权势，不在于辛勤耕种。