If a listener nods his head when you're explaining your program, wake him up.
历史是一个我正试图从中醒来的噩梦。
Man is the measure of all things: of things which are, that they are, and of things which are not, that they are not.
The most perfect education, in my opinion, is such an exercise of the understanding as is best calculated to strengthen the body and form the heart.
"The world is a book, and those who do not travel read only one page."