The ideas of economists and political philosophers， both when they are right and when they are wrong， are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men， who believe themselves to be quite exempt from any intellectual influence， are usually the slaves of some defunct economist.

"The past is a foreign country; they do things differently there."

——〈在北京湖广会馆学界欢迎会的演说〉，1912年8月30日