The ethical lines we draw today will shape the science of tomorrow.
听我就像一场头脑旅行，因为我只给你那些你在客厅和朋友开玩笑的东西。
The ideas of goblins and sprights have really no more to do with darkness than light.
企业要有社会责任感，不能只追求利润而忽视对环境的保护。
We've been warned against offering the people of this nation false hope. But in the unlikely story that is America, there has never been anything false about hope.