This is the famous saying of the World Expo: "Only nature is the real engineer" - British horticulturist Josephine Paxton

"Our country has the freedom of Symbol!”——President Grant of the United States

“Our human ancestors turned out to be outstanding artists”——Sotura, Spain

“Pursue the maximum with the minimum”—— Buckminster Fuller

"One small step for man, one giant leap for mankind. It's spiritual as well as technical." ——Armstrong

" Atoms have been magnified 150 million times, and I hope mankind will use atomic energy rationally" - Ander Watercairn

(Because this year's theme in Shanghai, China is "Better City, Better Life", So they are the slogans of each city, and each of our provincial capitals has one.

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