>>7666732
The self-evidentiary nature of things is not "common sense" but logically derived.
Man acts. Man cannot help but act. Man acts with rationality to make decisions. This is self-evident. An actor operating off of rationality is a rational actor.

So, in order to act on reason, it can be derived that man must have exclusive control of his own body, else it would be impossible. Exclusive control is ownership. As already explained, he cannot help but act, and thus man's ownership of himself is inaliable simply through it being a physical fact that it is impossible for an individual to give up his own control over his body. That is also self-evident.

Additionally, you cannot not-follow some sort of system to guide your actions when choosing between options for actions that interface with other humans. As humans we have already conceptualized ethics in a way such that it is an impossibility without doing the work of discovering a new one.