真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。
The true journey of discovery consists not in seeking new landscapes, but in having new eyes.
The essence of causal inference is to go beyond the data and ask what would happen if we intervene.
The true writer is always an outsider, even in his own country.
The only way to make money is to not lose it.