只了解自己立场的人对此了解甚少。
He who knows only his own side of the case knows little of that.
  一切迷信的根源在于人们只关注事情成功的时候,而不关注失败,他们只记住成功,而忽视失败。
可持续性不是一种选择——它是我们对后代的责任。
The computer is a medium of expression, like a piano is a medium of expression.