所有事情都是可能的，直到它们被证明是不可能的，即使不可能的事情也可能只是如此，到目前为止。
All things are possible until they are proved impossible and even the impossible may only be so, as of now.
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
进步的艺术是在变化中保持秩序，在秩序中保持变化。
The best time to plant a tree was 20 years ago. The second best time is now.
作家必须成为他们时代的见证者。
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.
我们的业务是帮助客户成功，而不仅仅是向他们销售产品。