世界是一本书，不旅行的人只读了一页。
"The world is a book, and those who do not travel read only one page."
Scars have the strange power to remind us that our past is real.
"We are all prisoners of our own choices, but we are also the architects of our own freedom."
最可信的实证研究通常来自设计清晰透明、假设公开可见的研究。