1. whoever scrimps on food and clothing on weekdays will easily tide over the difficulties when he is poor; He who is extravagant in abundance will die of hunger and cold in poverty. -Sadie

2. Nature is a kind loving mother and a cruel butcher. -Hugo

3. People often treat their surroundings as a free commodity, and spoil them at will without knowing how to cherish them. -ganhaman

4. what the earth gives to all people is the essence of material, but in the end, what it gets back from people is the garbage of these materials. -Whitman

5. Instead of forcing nature, we should obey it. -Escuman

6. If you want to be safe in life, you should have five essentials: first, clean the air; Second, we must clarify drinking water; Third, it is necessary to circulate ditches; Fourth, we must sweep the house; Fifth, there should be enough sunlight. -nightingale

7. As a result of our violation of nature, we have destroyed the beauty of natural landscape, the beauty of natural dynamics and the beauty of nature. -norman cousins

8. The moral expectation of human beings to the natural ecology must be related to their moral responsibility to the natural ecology, and an equivalent exchange mechanism must be established between human beings and the natural ecology, so as to limit and eliminate the irresponsible evil behavior of human beings to the natural ecology and the expansion of self-interest desire, and correct the serious disharmony between man and nature. -Zhang Liwen

9. Save our oceans for life on earth. -World Environment Day theme on June 5, 1998

1. Only by obeying nature can we conquer nature. -Darwin