The essence of causal inference is to go beyond the data and ask what would happen if we intervene.
我们不需要更多标志性建筑，我们需要更多好建筑。
I don't want to be a ruler. I want to be a rebel.
诗人的话语是他们灵魂的回声。
I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.
Opera is a way of living life. It is not something apart.