通常，我们只看见我们正在寻找的东西，有时甚至凭空就能看见。
We usually see only the things we are looking for- so much so that we sometimes see them where they are not.
过度捕捞只会让海洋变成荒漠，我们必须学会节制。
The principle of asceticism never was， nor ever can be， consistently pursued by any living creature.
禁欲主义原则从来没有被任何生物一贯坚持过，也永远不会被如此坚持。