粮食安全是一个需要地方行动的全球性问题。

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.

Mathematics is not just about numbers and equations; it's about understanding the deep patterns and connections in the universe.

The world is full of contradictions, and I try to explore them in my work.

"The most successful companies are those that put their customers first."