On July14th, Doctor Li Yanning attended the “Orient Youth” lecture series at the invitation of Chinese Culture and Chinese Issues Forum and gave a lecture entitled “Cultural Value and Economic Value: Practice and Thinking upon the Conservation of Architectural Heritage in Shanghai”. He and 60 on-site participants focused on the issue that the modern and contemporary constructions in China are conserved in the same way as what have been doing to the historic buildings, and discussed on the resulting limitations and special conditions in terms of protective principles, strategies and practices.