Hope is not a feeling; it is a doable thing.
强大的公司建立在共同价值观和相互尊重的基础上。
真相很少是纯粹的，也从不简单。
The only way to learn a new programming language is by writing programs in it.
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.