There are a lot of "almost everyone"s and "most of the time"s in there.
How does one ensure that everyone follows the Non-Aggression Principle?
Or a better question: How would one ensure that the greatest number of people follow the NAP?
The above passage makes a very good argument to have some form of government.
Liberty is the state of freedom achieved when everyone abides by NAP.
But how often does someone violate the NAP? Pretty damned often.
When most people ask themselves what is "Natural Law", they think of the "law of the jungle", survival of the fittest, essentially total violence and chaos, kill or be killed.
Go into a jungle and observe a group of a certain species and watch how they interact with one another. Any social species with any amount of intelligence is not living in total violence and chaos.
Actually, they don't even need intelligence. Look at an ant, termite, or bee colony. Total chaos and violence? Hardly.
This is because by applying rational thought, we can discover or develop opportunities for working together to accomplish more than we could individually.
What's that? Working together through logic and rational thought to accomplish something? You mean like protecting each other's liberty (rights)? How would we do that?
Any systems where some people have more rights than others (like dictatorships) are closer to the law of the jungle
Supposedly, no one has any more rights than any other. So this passage contradicts itself.
Competition can still thrive and continue improving the species but can't get too far out of hand, because the system is self-balancing as long as most people understand and remember the main principle involved (NAP).
And of course, since everyone is so civilized, no one will violate the NAP.
This is what Common Law should really mean, and the world would be much better off if was truly the common (and only) law of the whole world.
Who's going to enforce this law?
What if a person decides to violate the NAP? Then what?