Unity is strength. -------Proverb

Civilization is to create cultivated people. -------Ruskin

Wealth does not bring civilization, but civilization brings wealth. ------Beecher

Goodwill brings happiness, and civilization brings harmony. ------Hugo

Civilization is not built by machines but by ideas. ------Tolstoy

People can only live according to the experience revealed by nature. -----Schopenhauer

If you want to be safe in life, you should have five things. The first is to clean the air, the second is to clarify the drinking water, the third is to circulate the ditches, the fourth is to sweep the house, and the fifth is to have enough sunlight. ----Nightingale

Without a clean environment, no matter how affluent living conditions are, it is meaningless. ---Qu Geping

Nature is a kind mother and a cold butcher.

-----Hugo