Program testing can be used to show the presence of bugs, but never to show their absence!
程序测试可以用来显示错误的存在,但绝不能显示它们的不存在!
"The real voyage of discovery consists not in seeking new landscapes, but in having new eyes."
每个电影场景都是一个新世界,一个需要探索和理解的新现实。