Believe you can and you're halfway there.

清晰的使命为每一个行动提供方向和目的。

Without models, we would be wandering in the dark when it comes to predicting climate change.

The goal of education is not to increase the amount of knowledge but to create the possibilities for a child to invent and discover, to create men who are capable of doing new things.

引力解释了行星的运动，但它无法解释是谁让行星运动起来的。

免疫系统是抗击癌症的关键。

历史不是过去。它是我们进化出来的组织我们对过去的无知的方法。