计算机科学中的真正挑战不是编写程序，而是理解计算的本质。

写作不仅仅是讲述故事，更是发现其中的真相。

It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair, we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all doing direct the other way.

生活是世界上最罕见的事情。大多数人只是存在，仅此而已。

在沉默中，和惶恐不安作斗争。

Patients are at the heart of everything we do. Their needs drive our purpose and inspire our progress.