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Someone who believes that knowledge is not possible for themselves, some to different extents. They may believe that knowledge is possible, but paradoxically, it's impossible for them to know. While one will confine this to the metaphysical, most famously, regarding the existence of God, others will believe that they can know nothing at all, as not even their senses can be trusted.

Agnostics are often well-educated, and even more often do they see themselves as such. An agnostic, by virtue of their belief, typically sees themself as a very skeptical and critical person, and indeed, they usually are. They are often more intelligent on average than those who believe they know things, or at least, so the stereotype goes. Because of this, they often develop a sense of superiority, by which they can logically and rationally transcend the arguments of less-intelligent theists, who tend to be the most vocal ones.

An agnostic esteems above all else the scientific method. It is the infallible absolute of the agnostic. Everything must be empirically demonstrable to an agnostic, or it cannot be known to exist. A typical argument an atheist would use against a theist would be: "Since you cannot prove the existence of your God, how do you know that he exists?"

An agnostic attempts to apply empiricism to absolutely every aspect of reality. A thing does not exist unless it can be "scientifically proven". A modern understanding of science is the typical rhetoric of the agnostic.
Theist: "Do you believe in God?"

Agnostic: "I do not, because it is impossible to prove the existence of God. In fact, I do not believe it is possible to prove the existence of anything, as everything we've known is a product or our subjective consciousness."

Theist: "Are you sure?"

Agnostic: "Yes, I am 100% sure."


Agnostic: "If a thing cannot be proven scientifically, there is no way to know that it exists"

Philosopher dude: "But you are assuming the existence of knowledge, which in itself is a totally abstract concept that is entirely unprovable by those means. If you are to apply the scientific method to every facet of knowledge, with our current understanding of perception and cognition, it would be impossible to trust your own senses, and everything would be unprovable, and hence, you could know nothing at all, including the validity of the scientific method."

Agnostic: "Any ideas of yours cannot be empirically proven, so I need not listen to you."

Philosopher dude: *facepalm.
by Philosopher dude December 27, 2010
An agnostic is somebody who believes in agnocism. Which is a belief that there might or might not be a God. They don't live by strict religious rules, but are not atheist assholes. unfortunately agnostics are rejected by both atheists and religious peoples, but religious people tend to be more understanding towards them. Agnostics do worry about an afterlife unlike atheist that think people just stop existing after death (sucks to be a dead atheist). Agnostic people are more open minded than atheists and are a lot less annoying since they don't call their opinions facts all the time.
1. Matt Groening may be an agnostic, but at least he's not an atheist like that jerk Seth MacFarlane.
2. Atheist: You're agnostic right? Tell these catholic nerds that there is no God and that they are stupid for not sinning.

Agnostic: I can't say that because there is no proof that God does not exist, I'm just not sure which religion is right!
Atheist: The fuhrer will be very unpleased with you, how dare you disagree with me! Everything I say is fact! If there was a God I'd be him.
Agnostic: Right, why don't you sleep on it.
Atheist: We shall one day take over the Earth and when we do you religious peoples and agnostics will suffer!
by DempseyRichtofen November 16, 2009
Agnosticism, contrary to popular definitions, is not a belief. on the belief system you have theism and atheism. Agnosticism is in the knowledge system with gnosticism. Now you can combine these two. Agnosticism means without knowledge, and gnosticism is with knowledge. So you can be an agnostic atheist, an agnostic theist, a gnostic atheist, and a gnostic theist. You can't be just a plain old agnostic.
"I'm an agnostic"
"Agnostic what? agnostic christian, agnostic atheist, agnostic muslim, or what? Please tell."
by thegreatagnosticdefiner June 01, 2009
A person who believes that it can't be proven whether or not a deity exists. Really the best way to live since you don't have to deal with the arrogance that is both ends of the spectrum.
Christian (to Agnostic): Hey, do you believe in God?

Agnostic: Not exactly, since there is no actual proof that God really does exist.

Christian: You should believe in God, otherwise you will go to hell where you will burn forever.

Atheist (to Christian): Of course he's not going to hell, because hell doesn't exist just like God doesn't exist.

Christian: Of course God exists, you stupid Atheist! You'll burn in hell for saying he doesn't exist!

Atheist: No, he doesn't exist. Open your eyes, you ignorant brainwashed Christian sheep.

Christian: Shut up you liberal dumbass Atheist faggot!

Agnostic: I really wish I wasn't on this planet right now.
by dumbperson132 September 20, 2013
One who chooses doubt or uncertainty as a philosophy of life.
He is an agnostic. He'll never be sure about religion or irreligion.
by one who wants to find morals November 03, 2012
One who subscribes to doubt in regards to deities.
The agnostic concluded that their was no way to tell if God or gods existed, thefore he stopped trying to find out.
by Chenlambec September 12, 2009
It's Greek, and it literally means "without knowledge." (a=without, gnossos=knowledge). An antipathy towards religion and/or the existence of God.
More and more young people in the West are considering themselves agnostic.
by Kijsjaan08 October 12, 2008
----------------The Biological Hierarchy of Intelligence----------------------------------------------------------------------------
(In reverse order of intelligence)

The Bacterium:
Is minimally conscious of its surroundings and lives to replicate itself.

The Plant:
Is also minimally conscious of its surroundings, although more so than the bacterium, and it acts as a medium by which sunlight is transformed into energy for an ecosystem.

The Theist:
A delusional creature that refuses to study and become aware of its surroundings. It lives with the sole purpose of brainwashing others into accepting its ridiculous beliefs.

The Household Mosquito:
Semi-intelligent creature, the household mosquito is sometimes capable of successfully extracting blood from a host and avoiding being crushed by hands, newspapers and other household items.

The Sub-Saharan Elephant:
An exquisite creature with admirable intelligence. It is capable of seeking out pools of water from miles away.

The Atheist:
Widely considered the second smartest specie on Earth, the atheist battles the evils of religion.

The Agnostic:
Without doubt, the smartest creature on Earth. Agnostics realize that theists, are simply not worth arguing with.

Hey prof! Can you explain the Theory of Evolution?

Professor of biology at Stanford University:

Sure Billy! First, there was bacteria. They involved into plants, which evolved into the theists, which involved into household mosquitoes.


Oh, but where do atheists, agnostics and Sub-Saharan Elephants come from?

They didn't evolve Billy, they were always smart.
by Billy918273645 November 17, 2011