The only time I'm nervous is when I have to be myself.
唯一让我紧张的时候就是当我必须做自己的时候。
The beauty of instrumental variables is that they allow us to see the world in a new light.
We should always follow the path of appearances and withhold judgment.
当一个人了解别人的痛苦时,他必也是饱经痛苦的人。
The mother is the main factor in the child's world. Her behavior creates the behavior of the child.