The protection of patents and trade secrets of high-tech achievements such as biotechnology in the existing intellectual property system has promoted inventions and creations; the copyright protection of computer software and literary works (including text and audiovisual works) in the existing intellectual property system has promoted the Intellectual creation in the fields of industry and culture. But when protecting the "flow" of today's various intellectual creations and creations, people have ignored the protection of their "source" intellectual property for a long time. And traditional knowledge, In particular, the expression of folk literature is an important part of this "source". What is the main emphasis of this text? ['The intellectual property system is very important.', 'Defects in the existing intellectual property system.', 'Protecting traditional knowledge and folklore is important.', 'Existing intellectual property systems can promote inventions and intellectual creation.']