人生最大的悲剧不是死亡，而是没有真正活过。

"In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."

Now, my mama always told me that miracles happen every day. Some people don't think so, but they do.

"Every child deserves to see themselves in a book."

定义就是限制。