国家本质上是具有侵略性和扩张性的。

The study of mathematics is like air or water to the development of science.

I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.

创新是我们工作的核心。这是我们满足世界日益增长的能源需求同时减少环境足迹的方式。