移民经历是普遍的——它是关于离开一个家去寻找另一个家。
The beauty of instrumental variables is that they allow us to see the world in a new light.
如果我们现在不采取行动,过度捕捞将成为我们的孩子要偿还的债务。
I believe it's important to have a passion for what you do. If you don't have a passion, you won't have the energy to keep going when things get tough.
Understanding black holes is understanding the fabric of the universe itself.