Rights are absolute only if you accept that there is such a thing as objective truth.
Once we wander into the touchy feely world of subjectivism, the happy playground of today's post-modernists, all is lost since my "beliefs" are just as valid as your "beliefs". I could claim a "right" in direct conflict with one of your self-defined "rights" and who is to rightly adjudicate? After much rhetoric, what it boils down to in this system is that "might makes right". Whomever or whatever has the means to subject you to their belief system, that's what becomes "right" under any subjective truth doctrine.
So, here's my shot at a reasoned argument for objective truth:
There is this thing called causality (i.e. action / reaction - the principle of cause and effect.)
Looking at a common causal chain of events: (gun related for the moderators)
I pull a trigger
The hammer of my P229S Sport strikes the firing pin
The firing pin is set into motion and strikes the primer of a chambered round
The primer detonates, igniting the powder charge
The rapid buildup of gasses propels the bullet out of the barrel
The bullet strikes precisely where I was aiming (always, without fail, of course)
The thing about causality is that there always has to be a preceding event to "cause" subsequent events to occur.
Bear with me. I don't mean to wax too philosophical here, there is a point coming...
Looking further back along a causal chain, where does it end (or should I say, start)? Can a causal chain go on to infinity?
By definition, no.
So, let's take this large scale. Where did the universe start? What was the initial event that has "caused" everything we see around us?
The Big Bang?
What caused the Big Bang?
Long story short, this is my argument for the existence of God, the source of objective truth.
Now, see my sig line...
Free will was a gift from God to each individual. Therefore, our liberties directly follow.
What "caused" God, you ask? <shrug> Ask Him when you see Him.
I'm sure the answer will be very interesting.
Over the past couple millennia, many authors have tackled this question much, much better than I could dare to; by far not the least of which were our Founding Fathers. Go to Laissez-Faire Books (
laissezfairebooks.com) and have a look around for some good reading material.
Ken