To tax the larger incomes at a higher percentage than the smaller， is to lay a tax on industry and economy； to impose a penalty on people for having worked harder and saved more than their neighbors.

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

The true power of mathematics lies in its ability to reveal hidden patterns and structures in the chaos of the universe.

美国是世界上最强大的国家，在可预见的未来仍将如此。