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The beauty of instrumental variables is that they allow us to see the world in a new light.
The peculiar evil of silencing the expression of an opinion is that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it.
You can’t let fear dictate your life.
生命中最美丽的东西不是物品,而是时刻。
世界上充满了神奇的事物,耐心地等待着我们的感官变得更加敏锐。
Don’t let the noise of others’ opinions drown out your own inner voice.