数学中最重要的技能是提出正确问题的能力。

The circular economy isn't just good for the planet - it's good business.

大脑的活动构成了心智

"I don't know what I'd do without my fans. They're the reason I'm here."

In times of change, the learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists.

开始时有一点差错，结果会造成极大的错误。