"It is only through contact and comparison that the relative value or worthlessness of the various cultural elements can be clearly and critically seen and understood"

In this quote, Hu Shih is highlighting the value of comparing various cultural aspects in order to accurately examine their worth and significance. He suggests that by engaging in contact with different cultures and examining their differences and similarities, individuals can get an important understanding of the cultural elements and their relative worth or insignificance. Essentially, he is arguing that an extensive understanding of cultures needs exposure to and analysis of diverse point of views.