I never look back. I look forward.
我從不回頭看，我向前看。
Quality is never an accident; it is always the result of intelligent effort.
"The world is a book, and those who do not travel read only one page."
社會(huì)學(xué)的想象力使我們能夠把握歷史和傳記以及兩者在社會(huì)中的關(guān)系。