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秘密就像影子 - 時(shí)間越久拖得越長(zhǎng)。

Energy independence strengthens economies and enhances national security.

唯一安全的事情就是冒險(xiǎn)。

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.

The strengths approach is about identifying what is right with people and building on those qualities.

系外行星的發(fā)現(xiàn)為我們打開了探索宇宙的新窗口，讓我們能夠探索太陽系之外的世界。