最优货币区是指能够以最小的实际经济干扰来稳定就业和价格的区域。

我不是来取悦任何人的。

There is no shortcut to success. You have to work hard every single day.

"The challenge of acting is to live truthfully under imaginary circumstances."

"Literature is the mirror that reflects the soul of society, showing us both its beauty and its flaws."

In the pursuit of mathematical truth, we often find more questions than answers.