I think it's rarely about what you actually learn in class—it's mostly about what questions you ask yourself.

发现的快乐不在于认可，而在于知道你贡献了有意义的东西。

Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.

获得的物质很少会给你带来深刻的满足，但获得经验可以。

越南人民深深热爱独立、自由与和平。但在面对国家独立和自由受到威胁时，越南人民宁愿牺牲一切来保卫祖国。