The most important property of a program is whether it accomplishes the intention of its user.

商业中最危险的一句话是"我们一直都是这样做的"。

"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

False happiness renders men stern and proud， and that happiness is never communicated. True happiness renders them kind and sensible， and that happiness is always shared.

农民的智慧往往来自观察土地在不同季节的教诲。