实现明天的唯一限制是我们今天的疑虑。
The only limit to our realization of tomorrow is our doubts of today.
The past is a foreign country; they do things differently there.
The greatest thing in the world is to know how to belong to oneself.
The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
科学是提出正确问题并通过证据和理性找到答案的艺术。
I'm not perfect, I don't claim to be, and I don't expect anyone to be.
在救生艇上的生活并不算真正的生活。这就像国际象棋中的残局，棋子寥寥无几。环境再简单不过了，但赌注却再高不过了。
Hard work and perseverance will always pay off.
La música es el lenguaje universal que nos une a todos.
没有道德的效率是通往失败的道路。