文明
Coal isn't just a commodity; it's the foundation upon which modern civilization was built.
Sustainable forestry isn't just about cutting trees, it's about growing civilizations.
Agriculture is the foundation of civilization, and we must invest in its future.
Grain isn't just a commodity—it's the foundation of civilization.
Grain isn't just a commodity; it's the foundation of civilization.
To understand the electron is to understand the foundation of our technological civilization.
The Soviet Union was a civilization of fear, where people lived in constant dread of the knock on the door at night.
The measure of a civilization is how it treats its writers.