羊有跪乳之恩，鸦有反哺之义。
羊羔有跪下接受母乳的感恩举动，小乌鸦有衔食喂母鸦的情义。
设计系统最难的部分是决定构建什么。
Cease to struggle and you cease to live.
The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
行业、科学家和政策制定者之间的合作是解决海洋保护挑战的关键。