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The pain of parting is nothing to the joy of meeting again.

The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.

Collaboration is the key to solving complex problems.

我不后悔任何事情，因為每一步都讓我走到了這里。

我不需要許可來閃耀。

The key to solving complex problems is to ask the right causal questions.

美從功能中產生，而不是相反。

The key to credible causal inference is not just the method, but how well the method fits the question at hand.