The nightmare thought is that frightening people is the best way to get work out of them, and that somehow the crueler the environment, the more people will rise to the challenge. You want to think, who would you like as your ideal dad? And your ideal dad is somebody who is tough but gentle. And it's a very hard line to make. We need fathers, as it were, the exemplary father figures in society, avoiding the two extremes, which is the authoritarian disciplinarian on the one hand, and on the other, the lax, no-rules option.

能源安全是国家战略安全的重要组成部分，我们必须牢牢把握在自己手中。

The weight of a secret is heavier than stone.

嗯，第一条规则是，如果你只是记住一些孤立的事实，然后试图把它们背出来，你是不可能真正知道任何东西的。如果事实不是挂在一个理论的格子架上，你就没有把它们变成一种可用的形式。

你必须有一个梦想，这样你才能在早上起床。