程序测试可以用来显示错误的存在,但永远不能显示它们的缺失!
Program testing can be used to show the presence of bugs, but never to show their absence!
从社会控制中解放自己的最重要一步是能够在每一刻的事件中找到奖励。
Quality is not an act, it is a habit.
La palabra es el arma más poderosa que tiene el ser humano.
The division of labor is limited by the extent of the market.
Discipline is the bridge between goals and accomplishment.