There are no objects whose existence is indubitable.
The writer is a person who writes, not a person who is written about.
The most important property of a program is whether it accomplishes the intention of its user.
精通不是天才或天赋的功能。它是时间和强烈专注于某一特定知识领域的功能。
The power of the Internet lies in its ability to connect people and ideas.