关键不在于我们相信什么,而在于为何相信;道德责任由此开始。
It is not what we believe, but why we believe it; moral responsibility begins there.  
The beauty of architecture lies in its honesty.
I'm not afraid to speak my mind because I know that's who I am.
The best time to plant a tree was 20 years ago; the second-best time is now.
世界需要科学,科学也需要世界。