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.

失去某人，最糟糕的莫过于，他近在身旁，却犹如远在天边。

Never say never, because limits are just illusions.