A leader does not deserve the name unless he is willing occasionally to stand alone.
一个领导者如果不愿意偶尔独自站立，就不配拥有这个称号。
过去是一个异国；他们在那里做事的方式不同。
The revolution is a long and arduous struggle, but with determination and unity, victory is certain.
To truly understand the universe, we must first understand the limits of our understanding.
The beauty of physics lies in its ability to explain the complex with the simple.