海洋不仅是一种资源；它是我们必须为子孙后代承担的责任。
The ocean is not just a resource; it's a responsibility we must uphold for future generations.
"To live is the rarest thing in the world. Most people exist, that is all."
学习的意愿是一种内在动机，其来源和奖励都在于其自身的实践。