When strange or different elements come together, we will have fresh perspectives and divergent ways of thinking, which inevitably give birth to inventiveness. Cultural diversity has always been one of the most charming qualities of great cities, making it possible for people with different backgrounds to live side by side in harmony and to absorb the best of others. It is striking that many of the social, economic and cultural breakthroughs that shape our life have emerged not from the mainstream elites but from the restless marginal groups, who expose themselves frequently to those who are different from themselves and thus benefit the most from intercultural innovation.