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The beauty of instrumental variables is that they allow us to see the world in a new light.
The man who speaks to you of sacrifice, speaks of slaves and masters. And intends to be the master.
I tell you that virtue is not given by money,but that from virtue comes money.
我们生命中的伟大时刻是当我们获得勇气将我们的恶行重新命名为我们最好的部分的时候。
Collaboration between governments, businesses, and society is essential to meet the dual challenge of energy demand and climate change.
Beauty is the shadow of truth.