数学不仅仅是数字和方程；它是关于理解宇宙中的深层模式和联系。
The only way to escape the weight of history is to write about it.
The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.