"The only way to learn mathematics is to do mathematics."

可持续发展不仅仅是保护树木；它关乎确保自然和人类共同繁荣的未来。

Nature doesn’t care about your plans. It will test you, and you have to be ready.

安全不是成本——它是对我们最宝贵资源（人）的投资。

To paint is to remember what the eyes have forgotten.