The concept of individual liberty and natural law is really based on the concept of property ownership. When a person owns something they possess certain rights to it that other people don't have. They own the right to use their computer in a manor that the rights over that computer allow them to. Those rights were transferred from the previous owner so when I buy a computer from a manufacturer they are really transferring their rights to me and because of that no other person can tell me how to use those 'transferred rights'. This enables a great deal amount of freedom since I can use those property rights as a means of manifesting my free will such as posting on this website which is freedom of speech. I have this right because the manufacterer sold me the rights to use the computer any way I want without any restrictions and because of that no third party can interfere with that since no rights were transferred to them. They were only transferred to me. Not only do I own my physical possession but I own my own self and those rights, just like the computer, were transferred to me from some source. Everyone has the same rights over their own selves that were transferred to them which means that every individual has an exclusive right to their own existence and, at the same time, have no rights over someone elses existence since everyone fully owns their own person and nothing more. This means no one has a right to tell someone else how to exist which puts each one of us in a state of freedom where we are immune from the control of others.