Every lock has a key, every problem has a solution.

心灵不是需要填满的容器，而是需要点燃的火种。

Mathematics teaches us to think logically and creatively at the same time.

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

我们乐于种下种子，等待它们长成树。