Knowledge is a kind of global information, and the knowledge acquired in any field is essentially based on the phenomenon discovered in people’s ability and exploration of this particular field. In modern times, people gain knowledge from schools or books and from the Internet. The emergence of the Internet allows people to accept information more widely, but at the same time, it also increases the credibility of the information. To go back to the problem, it’s not just the advent of the Internet but also the credibility inherent in the different ways in which intellectuals communicate. Such as, art, it conveys knowledge through various forms of art. But it is not as reliable as biological knowledge that can be verified by real experiments. Because the artwork gives the author’s own thoughts and feelings, it is a very perceptual product. The knowledge shared in it is bound to be influenced by the artist’s own beliefs. For example, in the early Middle Ages, artists often painted Madonnas’ images that did not show noticeable female features. During the Renaissance, Madonna’s female characteristics were usually delivered to the audience to feel the glory of motherhood and the body’s beauty. Unlike the arts, such as the biological sciences, their messages are more verifiable through experiments. This also ensures the credibility of the knowledge. Although knowledge is global, knowledge’s credibility is different due to the different transmission modes established in various fields.