We are what we pretend to be, so we must be careful about what we pretend to be.

The beauty of instrumental variables is that they allow us to see the world in a new light.

The artist must be a servant of the invisible.

"世界是一个影子，而影子是一个谎言。"

语出（南宋）崔敦礼《刍言》。自以为聪明的人，其实并不聪明；自以为能干的人，其实并不能干。