心理学必须基于可观察的事实，而非推测。

Violence is not just physical; it's embedded in our systems and structures.

We must mine coal responsibly today so that our children inherit both energy security and a healthy environment.

The biographer's challenge is to be both a detective and a poet.

合作比竞争更重要，生态比单打独斗更有生命力。

Technology in agriculture should empower farmers, not replace them.

决定我们是否富有的，不是我们拥有的东西，而是我们没有也行的东西。

The liabilities are always percent good.It's the assets you have to worry about.