No, not rich. I am a poor man with money, which is not the same thing.

交易的关键是拥有优势并知道这个优势是什么。

The Vietnamese people deeply love independence, freedom, and peace. But in the face of a threat to their country's independence, the Vietnamese people would rather sacrifice everything than lose their country and be enslaved.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.