单一货币的最大优势在于消除了汇率波动并降低了交易成本，从而促进了贸易和投资。

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

My mother always said...If you don't like where you are…just picture where you wanna be.

文学的美在于它让我们能够过多种生活，体验不同的世界，感受他人的情感。