The extravagant are in ruins, the thrifty are safe, one bad thing and one good thing are in front of them. ——Bai Juyi

Whoever scrimps on food and clothing on weekdays will easily get through difficulties when he is poor; whoever is luxurious and extravagant when he is rich will die of hunger and cold when he is poor. ——Saadi

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

——Gan Haman

The earth gives the essence of matter to all people, but in the end, the reward it receives from people is the garbage of these materials.

——Whitman

We The result of going against nature is that we destroy the beauty of natural landscapes, the beauty of natural dynamics and the beauty of nature.

——Norman Cousins

If you want safety in life, when There are five essentials: first, clean air; second, clarified drinking water; third, drainage ditches; fourth, houses must be swept; and fifth, adequate sunlight.

——Nightingale

But leave an inch of land for future generations to cultivate

The earth is not a legacy given to us by our ancestors, but belongs to future generations.

"Corruption and waste are the biggest crimes" - Mao Zedong

A porridge and a meal are hard-earned favors, but half a trace of persistence and material resources are difficult - Zhu Bailu

Don't waste, for waste is a sin. ——Marx

Don’t use water in vain when you are near water, and don’t burn firewood in vain when you are near mountains.

――Han proverb