古之立言者，皆有所为而为之，非苟而已也。
古代著书立说的人，都是有所为而为之，不是随便写写的。
The best advice I can give to aspiring filmmakers is to never give up on your dreams.
The progress of aquaculture cannot be separated from the support of scientific research.
挑战是伪装的机会，拥抱它们。