Program testing can be used to show the presence of bugs, but never to show their absence!
追求知识是一场没有终点的旅程,每一次发现都为新的奥秘打开了大门。
古代善于写诗的人,并不自认为是诗人。他们胸中所积累的,高深、广阔、悠远;而偶然通过诗歌表达出来,那么诗歌也因此变得高深、广阔且悠远。
The power of the Internet lies in its ability to connect people.
The best way to predict the future is to invent it.