The slogan "Welcome home" reflects the Greek people's call for the ancient Greek cultural spirit of harmony between heaven and earth, and expresses the strong desire for people all over the world to feel Greek culture again. This not only includes the most sincere and warmest welcome of the Athens Olympic Games to all members of the global Olympic family, but also fully expresses the joy and pride of Greece's return to the Olympic Games as the birthplace of the Olympic Games.

"One World, One Dream": It belongs to both China and the world. The slogan expresses the lofty ideal that the people of Beijing and China and the people of other countries in the world have a beautiful home, share the fruits of civilization and work together to create the future. Expressed the firm belief that a great nation with 5,000 years of civilization and moving towards modernization is committed to peaceful development, social harmony and people's happiness; It expresses the desire of the 654.38 billion+300 million people in China to contribute to the establishment of a peaceful and better world.