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.

衡量一个人得看他拥有力量时的所做所为/衡量一个人得看他用自己的力量做了什么。

自然是一个活生生的整体，而非死寂的集合体。

If you can dream it, you can do it.

Don't be afraid to stand out, the world needs your unique light.

"The universe is a puzzle, and each discovery is a piece that brings us closer to the complete picture."

人们自己创造自己的历史，但是他们并不是随心所欲地创造，并不是在他们自己选定的条件下创造，而是在直接碰到的、既定的、从过去承继下来的条件下创造。