Chinese Civilization: Sui Ming Period

Some people say that the criterion for dividing civilization is the use of tools. Sea otters use rocks to crack open shells. Octopuses use coconut shells as armor and RVs, Gorillas can even make simple tools. Are they also civilized? No, what truly separates humans from animals is fire. Overcoming the instinct of fear of fire and using fire to transform energy and productivity is the real starting point for mankind to embark on the road to civilized development.