Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

México es un país de espejos rotos, donde cada fragmento refleja una realidad distinta.

The quality of an organization's values determines the quality of its decisions.

好的悬疑故事应该让读者一直猜测到最后，但所有线索都必须存在。

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.