You have the right to defend your life and that of others against murderers aggressors tyrants etc.
(on the other site, you don't have the right to be an murderer, aggressor, tyrant for if you did harm someone who did not harm anyone, that someone has the right to defend him herself against you.)

Rights are action/behavior you can do that does not harm others (that does not go against their consent). Is another way of saying it.

For example not wearing a seat belt is a right (your not harming anyone else). Forcing someone to wear a seat belt and stealing from them if they don't obey your opinion is not a right.

Another video on the subject