False facts are highly injurious to the progress of science, for they often endure long.  

Your voice can change the world.

我们要用全球化的视野来布局未来。

Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.

最大的风险是不冒险。