《在北京五族共和合进会与西北协进会的演说》，1912年9月3日。

The truth is rarely pure and never simple.

Economic research should aim to inform real-world decision-making.

Science teaches us humility, for every discovery reveals the vastness of our ignorance.

Integrity is the foundation of every lasting success.

The act of writing is an act of love.

作家必须是一个自由的存在，即使这会让他付出一切代价。