The world is a book, and those who do not travel read only one page.
世界是一本书，不旅行的人只读了一页。
In the landscape of string theory, there are perhaps 10^500 different vacuum states, each corresponding to a different possible universe.
行业与环保人士之间的合作不仅是可能的，而且是必不可少的。
"A good book is a friend that never lets you down."
书籍是通往宇宙的钥匙。