即使在抽象中，数学也具有深远的现实应用。

The ocean is not a bottomless pit; resources are limited, and only by respecting nature can we achieve long-term development.

What we see changes what we know. What we know changes what we see.

The sea has never been friendly to man. At most it has been the accomplice of human restlessness.

最终，重要的是工作本身。不是名声或金钱。