最重要的是对你想要做的事情有一个愿景,然后有毅力去实现它。
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
验证不仅仅是发现错误;它关乎理解系统为何以某种方式工作。