Is what you believe, knowledge?

That depends on how you define knowledge. I define it as, what is known. As I see it, the only thing a person can know is, what they themselves think and believe. So, my answer to your question is, yes, what you believe is the only knowledge that you possess.

Here is what, in my opinion, knowledge is not: It is not physical reality. That means it's not text books, neurons and neurotransmitters, the sound of a lecturer's voice, or the blood on a murder weapon.

Some people might try to equate knowledge to a correct interpretation of physical reality, or a correct discernment of what some other person is thinking and believing; I don't. Unless we are talking about what we ourselves are thinking and believing, we can never know, with 100% certainty, whether or not what we think and believe is correct. We only know our own minds. Everything else that we think we may know (know in the sense of the word that is commonly used i.e. "I think and believe something, and what I think and believe is correct.") is only speculation and guesswork that is, to varying degrees, possibly mistaken.

Justified true belief is considered knowledge, and is one of the few things that Aristotle and Plato agreed on. If you have an undeniable certainty that X is true, then it can only be knowledge, not theory.

While your certainty may change later with further knowledge, like the world coming around to the idea of the earth rotating around the sun, then the new certainty is knowledge.

No. What you believe is just what you believe and you do not really know anything much for sure.

Outside of logical and mathematical constructs which can be proven and considered knowledge you just have a range of belief:

From belief with no evidence to belief with non-stop daily evidence ... and everything in between.

Beliefs nearer to the "non-stop daily evidence" end of the scale are often practically considered to be knowledge but are in fact just "extremely reasonable beliefs".

I believe that one plus one equals two. My knowing that one plus one equals two is knowledge. Even if I did not know that one plus one equals two, it's still true that one plus one equals two.

But, just because I believe something does not make it knowledge. If I believed that the earth was flat, that would simply be my belief, but it's not knowledge, because in reality, the earth is round, and yet, I would have believed that the earth is flat. Believing that the earth is flat is just an opinion. It's not knowledge, because the earth is actually round.

Knowledge is your knowing something that is true. Belief could be an opinion, and not knowledge. You could believe the truth, and thus, it would be knowledge. Or, you could believe whatever you want, no matter the truth, but then, it would be an opinion, and not knowledge.

Of course not !!! Most people are confused this way. Listen to the things that Christians say. After they say them, they add, "I KNOW this is true!!" No, they do not. They believe it. But KNOW it? No. Belief and knowledge are NOT the same thing. And atheists do the same thing that Christians do. They'll make some outlandish statement, and then smugly say, "I know this is true." Once again, no they don't. They believe it. Few people want to pursue knowledge. They prefer to have a cheap opinion ...

The fact is, there is a "way things are", a set "truth" to things if you will.

A belief requires no factual basis at all. Knowledge does. The issue then is beliefs that are tangent to reality (the way things are, the set truth) are free to fester...but where does this lead?

A belief will become deeply embedded into your psyche and serve to create thoughts or rationalize/frame information, that are all in alignment to the belief itself. After a while, this brings a person comfort because it provides answers (that make sense to them) to their questions, and the basic drives of a human being are the attainment of pleasure and the evasion of pain.

Eventually, they become defensive (to the point of stubborn ignorance or even hostility) of the belief, but not out of confidence or because its an important truth that needs to be shared and understood...but because to shatter the belief would shatter all the comfort it brought and bring down the entire world that made sense to them. This is the natural procession of a belief that is adhered to that is tangent to the objective forces of nature and reality we all exist within.

It literally becomes ones personal Stockholm's Syndrome.

Knowledge however is not subjective or at the mercy of peoples opinions.

A good real life example of what the people belief vs the knowledge of what it really is: http://see_the_truth.webs.com/

Is what you believe, knowledge?

~~~ Everything is 'knowledge'!

The new, critically updated, all inclusive, Universal definition of 'Knowledge';

"'Knowledge' is 'that which is perceived', Here! Now!!"

All inclusive!

That which is perceived by the unique individual Perspective is 'knowledge'.

All we can 'know' is what we perceive, Now! and Now! and Now!!!

'Ignorance' is that which is NOT perceived, at any particular moment, by any particular unique Perspective! Here! Now!

'Beliefs' are an infection of the imagination, the ego! Vanity!

Beliefs' are 'thoughts'.

We experience 'thoughts', thus 'we have knowledge of 'beliefs'.

So 'beliefs' are knowledge/experience of 'beliefs', nothing more!

What you believe is not knowledge. Knowledge is used to support of what you believe.

Not always. Sometimes we believe things that are in fact not correct. This makes them pseudo-knowledge. False information is what many confuse to be knowledge.

Other way around. Knowledge is a subset of belief.

You believe in certain principles - say, good logic and reasoning - that qualify your knowledge to you as knowledge, but you still need to believe these things in the first place to give them value in truth-finding.