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Music is my life, I can't live without it.

數學是一門活生生的學科，不斷演變和發展。

People with a sense of fulfillment think it a good world and would like to conserve it as it is, while the frustrated favor radical change.

Quality is remembered long after the price is forgotten.

數學是一種思維方式，而不僅僅是一堆事實。