艺术的目的是表现事物的内在意义，而不是外在表象。

The world is full of beauty, but it is also full of pain and suffering.

我不会为任何人降低自己的光芒。

So given a Time Turner, I would tell my 21-year-old self that personal happiness lies in knowing that life is not a check-list of acquisition or achievement. Your qualifications, your CV, are not your life, though you will meet many people of my age and older who confuse the two. Life is difficult, and complicated, and beyond anyone’s total control, and the humility to know that will enable you to survive its vicissitudes.

拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到对称性和拓扑的保护，使它们对某些类型的无序免疫。

A school should not just be a place to learn, but a place that inspires learning.

可持续发展不仅是一种趋势，更是一种责任。