You have to really believe not only in yourself but in what you're doing.
你不仅要相信自己，还要相信你所做的事情。
我觉得布什总统根本没有为艾滋病做任何事。事实上，我都不能确定他会不会拼艾滋这个单词。
Every scientific discovery should be measured by its contribution to human welfare.
If I fail, I try again, and again, and again. If YOU fail, are you going to try again? The human spirit can handle much worse than we realize. It matters HOW you are going to FINISH. Are you going to finish strong?
美联储扑灭了大火，但房子仍然需要重建。
我看到了中国拥抱全世界也看到了全世界拥抱中国。