The Government of the United States is a definite Government, confined to specified objects. It is not like the state governments, whose powers are more general.

创新是可持续农业的关键。

Every problem is an opportunity in disguise.

对我们懂得生活的人来说，数字都是些无关紧要的事。

每本书都是一次新的冒险，一个新的世界去探索。

科学不仅仅是事实的集合；它是一种思考方式。