登山不因为艰难险峻就停止攀登，那么最终必定能登上峻岭。

自由竞争是提高经济效率和创造繁荣的重要手段。

我是一个行走的矛盾体。

"The world is full of stories, but the ones that stay with us are those that speak to our deepest fears and desires."

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

The best products are those that solve real problems.

“未经审视的人生不值得过。”