The interplay between theory and observation is what advances astrophysics.
信仰使穷人不至于去谋害富人。
心灵是自己的地方,在那里可以把地狱变成天堂,把天堂变成地狱。
In the examination of the parts of animals, I have diligently endeavored to arrive at the truth.
The individual has always had to struggle to keep from being overwhelmed by the tribe.