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

天地的法则用一句话就可以概括，它自身诚一不贰，化育万物，不可测度。天地的法则是：广博，深厚，高超，精明，悠久，长远。

I'm not afraid of dying, I'm afraid of not trying.

互联网是教育、沟通和协作的强大工具。

Without magic, there is no art. Without art, there is no idealism. Without idealism, there is no integrity. Without integrity, there is nothing but production.