Civilization is to cultivate educated people. -Ruskin

Richness does not bring civilization, but wealth produced by civilization. Beecher

Goodwill brings happiness, and civilization brings harmony. Hugo

The establishment of civilization is not a machine but an idea. -Tolstoy

Humans can only live according to the experiences recorded by nature. -Schopenhauer

If you want to live a safe life, you must have five essentials. One is to purify the air, the other is to purify drinking water, the third is to circulate ditches, the fourth is to clean houses, and the fifth is to have plenty of sunshine. -Nightingale

Without a clean environment, even the best living conditions are meaningless. -Qu

Nature is a kind mother and a cruel butcher. Hugo