Chinese Minister of Culture Cai Wu (C) delivers a speech entitled the Chinese Culture and China's Peaceful Development, at the Woodrow Wilson International Center for Scholars in Washington DC, capital of the United States, Sept 21, 2011. China's choice of its road to peaceful development is deeply rooted in its long cultural tradition, which advocates peace, harmony and tolerance, rather than use of force, Cai Wu said on Wednesday. [Photo/Xinhua]