When our savage ancestor felt a pain in his stomach, his simple instinct showed him that if he put things in his mouth and swallowed them the pain in the stomach would leave.
This low browed man's whole object in life was to keep from having those hunger pains, and the only energy he expended was in hustling for food and in protecting his food from the other savages.
One day a man observed that the beasts lived on each other, so he conceived the idea that it would be good for him to live on other animals. That it would be easier than digging roots and gathering herbs, so this man caught and ate slow-moving animals. He used a club to do the killing.
Along about here competition began, for another man learned to throw a club and kill his game. Then another competitor discovered that a round stone was a more effective weapon than a club.
These hairy forbears of ours lived in caves until competition led up to the building of huts.
One day a savage discovered that while the skins of animals were hard to eat, they nevertheless made a good body covering. Another discovered that if the skins were tied about him it left his arms free to act. This man was the first tailor. He punched holes in the skin and tied the rude garment together with strips of skin. This first tailor was quite an important man among his fellows on account of his great discovery.
Some of these wild men were fleet of foot and had well developed cunning. They became expert hunters. On the other hand some of the less active, by the law of compensation, became more expert tailors, so trade was formed. The hunter killed enough for himself and the tailor, while the tailor made clothes for both of them.
In these days the woodsman lived on animals and the plainsman on vegetables mostly. So the woodsman traded skin clothing with the plainsman for grains and herbs, and this marked the birth of commerce.
Then dugouts and canoes were built, and thus our ancestors crossed lakes and seas and developed maritime commerce.
From away back in those dark ages up to the present time competition has stimulated mankind and spurred him on towards better conditions. The whole human race has benefited by each improvement which competition has brought about.