如果你没有进步，就是在落后——尤其是在像畜牧业这样充满活力的行业。

"The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential."

当我退役的时候，我希望回头看我走过的路，每一天，我都付出了我的全部。

All happy families are alike; each unhappy family is unhappy in its own way.

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.