你不应该认为对你来说难以掌握的东西是不可能的，如果是人类可以实现的，就应该认为它是可以实现的。
You must not think that what is hard for you to master is humanly impossible； and if it is humanly possible， consider it to be within your reach.
The goal of the future is full unemployment, so we can play. That's why we have to destroy the present politico-economic system.
The challenge is to make the invisible visible.
The essence of mathematics lies in its ability to reveal hidden patterns and structures in the universe.
翻译：事物的发展变化没有穷尽，一个过程的终止，是下一个过程的开始。
信念有创造的力量，也有毁灭的力量。