质量从来不是偶然的；它始终是智慧努力的结果。
Quality is never an accident; it is always the result of intelligent effort.
学习新编程语言的最好方法是用它编写程序。
The past is a different country, they do things differently there.
一本书就是你手中握着的梦想。
信心不是乐观或悲观，也不是性格属性。它是对积极结果的期待。