The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

相信自己能行，你已经成功了一半。

我们都是自己选择的总和，也是他人为我们做出的选择的总和。

Light is what makes architecture alive.

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

不修养品德，不讲习学问，听到正义不能追随，有缺点不能改正，这些都是我所忧虑的。