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."
The said truth is that it is the greatest happiness of the greatest number that is the measure of right and wrong.
I’ve always been an optimist and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place.
The best books are the ones that children want to read again and again.
人生就像骑单车。想保持平衡就得往前走。
只要一件事与我们的本性和谐，它必然是善的。
当我们恋爱时，我们最有活力。