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！
成功不是终点，失败也非末日，最重要的是继续前进的勇气。
"We are all prisoners of our own choices, but we are also the architects of our own freedom."
灵魂是一种通过所有感官发射其光芒的火焰；存在就在于这火焰之中。