生活就像一架钢琴，白键代表快乐，黑键代表悲伤。但在人生的旅途中，请记住黑键也能创造音乐。

The great and chief end, therefore, of men's uniting into commonwealths and putting themselves under government is the preservation of their property.

The real violence is the violence we do to ourselves when we’re too afraid to be who we really are.