1. Only by obeying nature can we defeat nature. ——Darwin

2. Nature is a kind and loving mother, but also a cold butcher. ——Hugo

3. People often regard the environment around them as a free commodity, squandering it arbitrarily without knowing how to cherish it. ——Gan Haman

4. The earth gives all people The essence of matter, and in the end, the reward it gets from people is the garbage of these materials. ——Whitman

5. Not only cannot force nature, but must obey nature. ——Aescu Mance

6. The result of our going against nature is that we destroy the beauty of natural landscapes, the beauty of natural dynamics and the beauty of nature. ——Norman Cousins

7. If you want to be safe in life, you should have five things: first, clean air; second, clarified drinking water; third, drainage ditches; fourth, house sweeping; and fifth, sufficient sunlight. ——Nightingale