The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.
I'm a woman and I have imperfections... and I'm proud of it.
国家本质上是具有侵略性和扩张性的。
过去半个世纪最重要的政治发展是自由民主在世界范围内的传播。
The problem with marriage is that it ends every night after making love, and it must be rebuilt every morning before breakfast.