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Understanding the Basic Difference Between Knowledge and Belief

Understanding the Difference Between Knowledge and Belief
Knowledge and belief are two concepts that can really make you get lost in deep thought if you think long over them. There are more than one aspects in which you can look at the two concepts. Philosophers have always debated about where lies the difference between knowledge and belief. Here is an account of knowledge vs. belief.
Mrunal Belvalkar
Last Updated: Mar 19, 2018
There is a whole lot of information available on the Internet. Hence it is not uncommon for us to go and Google something that intrigues us. I am guessing you did the same before you landed on this page. Now, based on the kind of experiences and associations we have with the whole concept of 'finding answers on the Internet', we either believe that we will get the answers we are looking for, or we believe that we won't. But can we know for sure?

This is the crux of the difference between knowledge and belief. You believe in something; but you may or may not know it to be a fact. Knowledge vs. belief is too vast a topic to cover in a few hundred or thousand words, but I will try to.
A Philosophical Perspective
Let us first try to understand what philosophers have said about knowledge and belief.
Plato's "Justified True Belief"
Many philosophers have tried to explore the nature of human knowledge and the means through which we acquire it. (Here knowledge is not equal to truckloads of information, as is available on the Internet!) Plato has said, something that is a justified true belief is knowledge. Understanding the definition would require a clear and concise understanding of the terms involved in it. Let us take a look at them. 'Justified' means something that is rational and reasonable. 'Truth' means something that is in accordance with fact. ['Fact' means something that can be verified, usually based on personal experience.] And 'belief' is something one holds to be true. So, if you have a belief, you have a reason enough to believe in it, and if your belief is in accordance with the truth, it becomes your knowledge.
The Gettier Problems
Many philosophers of Plato's time, and many that came after him, did not agree with Plato's definition of knowledge. The most significant explanation was given by Edmund Gettier in 1963 in his paper Is Justified True Belief Knowledge? Gettier gave examples - famously known as Gettier problems - which investigated situations in which the boundaries between knowledge and belief seemed hazy. Now, suppose you have a justified belief that your friend will win a race he/she is participating in. Suppose you also have a justified belief that your friend is going to wear a red T-shirt for the race. Hence you justifiably conclude that, "the person who will win the race will be wearing a red T-shirt". This is your belief. Now consider that your friend does not win the race, but the person who wins it is wearing a red T-shirt. Thus your belief that the person who will win the race will be wearing a red T-shirt turned out to be justifiable and true. But was it knowledge? Not really, for it was a belief that only coincidentally turned out to be true.
The Moore's Paradox
G. E. Moore's concept - known as Moore's Paradox - also put the definition of knowledge to test. Moore's paradox elicits how it is sometimes difficult to assert two statements at a time. For example, you may at some point of time have a justifiable belief that the bus you take to college will be late. And you may also have a justifiable belief that you are going to reach college on time. Now consider that the bus did arrive late, but you met a friend who took you along. So the conjunction of your beliefs has turned out to be true (i.e. the bus really was late, like you believed, but you also reached college on time, like you believed). However, will it not sound absurd to assert the two beliefs in conjunction? "The bus will arrive late, but I will reach college on time." The two statements seem contradictory, but both can be justifiable beliefs that actually turn true. Then why is it difficult to assert so?
Knowledge vs. Belief - The Real Picture
Having taken into consideration two radically opposite points of view on knowledge, let us try to look at the two concepts separately.
Woman reading book
Knowledge is the realization of a fact. You may come to know about things through various mediums - books, Internet, education or experience. Going back to the definition of knowledge as justified true belief, we know something to be true (or to be a fact) if we can verify it. Experience is something we rely on, the most, to verify our knowledge. It works most of the time. You can support knowledge and verify it using experimental or statistical data. This is also why knowledge can be 'proven' to be wrong.

There are various types of knowledge, according to epistemology (branch of philosophy that deals with the nature of human knowledge and its scope and limitations). Propositional knowledge is also dubbed as 'knowledge that'. For example, you know that two multiplied by three is equal to six. Then there is 'knowledge how'. For example, you know how to multiply two by three. There is also 'knowledge by acquaintance'. For example, you know your city, you know a person. All types of knowledge are tangible.
While knowledge is regarded tangible, belief is a psychological state. This itself makes the whole concept vulnerable to strong debates and accusations. A belief is not something that can be seen, heard, smelled, tasted or touched. It is all in the mind; something that we all feel but cannot prove by the scientific method.

Beliefs are of two main types - commendatory beliefs (belief in ability, for example, "I believe I am a good writer.") and existential claim beliefs (belief in the existence of something, for example "I believe in God.") While commendatory beliefs are held by most people as essential, beliefs related to existential claims are a topic of much debate.
Knowledge and Belief: How are they Different?
Knowledge is indispensable, yes. However, belief is equally important. A simple example - if I do not believe that a tablet of an analgesic will take care of my headache, I will never test my belief. Hence I may never know for a fact that an analgesic actually does relieve headache. However, even if I don't believe, it does not change the fact that analgesic tablets do relieve headaches. In this sense, knowledge is not based on belief. However, the more you can base your belief with fact, the stronger your belief will become. (or in turn, the lesser facts you find to base your belief on, the weaker it will become). Hence belief is affected by the knowledge you have.

The biggest difference between belief and knowledge is - it is the tendency of most people to test their beliefs and not their knowledge. When we are sure we know something, we do not really go back and try to verify it. We tend to accept our knowledge more readily than our beliefs. Our beliefs, however, are constantly put to test; by us, by people around, by situations, experiences among many other things.
In My Opinion
(Disclaimer: Before I begin, I would like to say that following are my concepts about the difference between knowledge and belief. They may not be in complete accordance with what you know or believe. My intention here is to only give you a complete picture from my point-of-view, so that it triggers you to test the two concepts yourself.)

There is knowledge and there is lack of knowledge. It is the lack of knowledge that gives rise to such concepts as belief. Knowledge can strengthen or weaken a belief. But belief in itself arises out of lack of knowledge. If I know something to be a fact, I know it to be a fact. If I don't, then I have room to believe or not believe in it. Thus, it seems knowledge is more fundamental than belief. Whether you believe in something or not, does not change the fact. But whether you know something to be a fact or not can change your belief in it.

However, knowledge is not universal, for something that is justified to me need not be justified to you; something that is verifiable for me need not be verifiable for you. For example, I have seen and tasted a donut before, so I can verify if an unknown eatable placed in front of me is a donut or not. But if you have never heard of, seen or tasted a donut before, any unknown eatable could pass as 'donut' for you. Another example - if you show a red apple to a colorblind man and ask him what color it is, he will say the apple is gray. That is his fact, his reality, his knowledge. It is not 'false' (for the apple does really look gray to him), but it is not true either. (For we all know apples are not gray in color). Hence, from the definition of knowledge given by Plato, knowledge is subject to perception as well.

Another aspect to be considered here is the source of your knowledge. Is it genuine and authentic? How did I come to know what a donut looks or tastes like? Can I believe in the source of my knowledge about donuts? I can know what donuts look and taste like for sure, only if I believe in the source that gave me the information - people around, magazines, culinary shows, the Internet, whatever. In this sense, belief has an upper hand. We can gain knowledge only if we believe in the source that is letting us know.

In short; lack of knowledge leads to formation of beliefs. However, other things like culture, religious teachings, upbringing, experiences, etc. also contribute to the belief formed. (Simple example - we all have inadequate information about 'God' - but we all don't have the same beliefs about God.) Increasing your knowledge about something will alter your beliefs about it. But your beliefs won't alter your knowledge. In spite of this, the act of 'believing' in itself is indispensable, as you need to believe in what you know, to realize that it is knowledge. According to me, one should not try to eliminate either of knowledge or belief from one's life. Both are necessary, important and functional. Just imagine, if we didn't have such a thing as belief, we wouldn't be able to live! I am going to live for another 60 years at least, I believe. But who knows? Tomorrow, I might die in a freak accident! (Knock on wood.) But I choose to believe I am going to live, and that allows me to go on living, planning for a future. Consciously, subconsciously, we are all keeping belief - in people, in situations, in ourselves. Belief is what keeps us going. After all, knowledge was, is, and will always be incomplete. All that we can hold on to and depend on, are our beliefs.