无论他做什么，地球上的每个人在世界历史中都扮演着核心角色。而通常他并不知道这一点。
No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.
愉快是健康的最佳促进者。
Great deeds are usually wrought at great risks.
I’m not frightened of falling in love. I’m frightened of not falling in love.