我们还有很长的路要走，但我们正朝着正确的方向前进。
We still have a long way to go. But we are moving in the right direction.
The true end of satire is the amendment of vices by correction.
The world is full of people who have never, since childhood, met an open doorway with an open mind.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
In mathematics, you don't understand things. You just get used to them.
宇宙正在膨胀，而且膨胀的速度在加快。
不要害怕新的竞技场。