The only limit is the one you set for yourself.
唯一的限制是你给自己设定的限制。
Collaboration across borders is essential to combat illegal logging.
The first man who， having enclosed a piece of ground， bethought himself of saying 'This is mine，' and found people simple enough to believe him， was the real founder of civil society.
It’s funny. The things that are most important to you are often the hardest to talk about.
The story of chemistry is the story of humanity’s quest to understand the world.
Planning to write is not writing. Outlining, researching, talking to people about what you're doing, none of that is writing. Writing is writing.