保持微笑，这会让人好奇你一直在忙什么。

"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Nature hath made men so equal in the faculties of body and mind， as that though there be found one man sometimes manifestly stronger in body or of quicker mind than another， yet when all is reckoned together the difference between man and man is not so considerable as that one man can thereupon claim to himself any benefit to which another may not pretend as well as he.