The boundary between physics and mathematics is not as clear-cut as one might think.

人类本性中最深切的欲望是成为重要的存在。

Olympism seeks to create a way of life based on the joy found in effort， the educational value of a good example and respect for universal fundamental ethical principles.

单一货币的最大优势在于消除了汇率不确定性并降低了交易成本，从而促进贸易和投资。