我们对宇宙了解得越多，就越意识到我们不知道的还有很多。
The more we learn about the universe, the more we realize how much we don't know.
The real conflict is between the rights of the individual and those of society.
发明的进步使人类拥有了世纪前最大胆的想象也无法梦见的力量。