I'm interested in the weak materials, the materials that people don't think can be used for permanent structures.

恐惧是对我们所害怕事物的预知。它是一种奇妙的能力，我们对它了解得越多，就越不会害怕。

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in your life you will have been all of these.

对任何政府来说，最危险的人是能独立思考的人。

我在数学上花的时间越多，我就越兴奋。