What are core beliefs and how do they shape your values
Core beliefs are the foundational assumptions you hold about yourself, other people, and how the world works. They form early in life, often before you have language for them, and they operate mostly outside your conscious awareness. Aaron Beck's cognitive model, developed through decades of studying how people think, shows that automatic thoughts arise from these deeper schemas or core beliefs. You don't notice the belief itself. You notice the thought it produces and treat that thought as fact. A core belief that you are not enough generates the automatic thought "I'm failing," which feels like data rather than interpretation. Once you believe the thought is true, your decisions follow from it.
Core beliefs shape your values by determining which possibilities feel real to you and which feel impossible. If you hold an unexamined belief that meaningful work is for other people, you will not pursue work that matters to you, and you will tell yourself you don't actually want it. If you believe that conflict means rejection, you will prioritize peace over honesty in your relationships, and you will call this "being considerate." The belief runs the show. The values you consciously claim often reflect what you think should matter, not what actually guides your behaviour. This is why someone can say they value authenticity while spending their days performing a version of themselves they don't recognise.
How core beliefs form and why they stick
Core beliefs solidify through repeated experience, especially early experience. If you grew up in an environment where your needs were met inconsistently or where expressing yourself led to rejection, you developed a belief about how safe it is to want things or be seen. That belief was adaptive then. It protected you. But it does not update automatically. You can be an adult with stable relationships and still hold the core belief "If I ask for what I need, I will be abandoned." The belief persists because it lives in a part of your brain that does not require current evidence to sustain itself. Neuroscience shows that schemas, once established, have neural pathways that fire habitually. They predict before you notice.
Jeffrey Young's work on early maladaptive schemas identifies the specific patterns that lock in place: deprivation (the belief that your needs will never be met), abandonment, defectiveness, incompetence. These schemas generate entire clusters of automatic thoughts and defensive behaviours. Someone with an abandonment schema might interpret a partner's quiet evening as the beginning of the end. Someone with a defectiveness schema might hear genuine praise and immediately search for what was really meant. The thought feels like observation. The pattern feels like truth.
Core beliefs also stick because they are self-confirming. Cognitive fusion is the technical term for treating your thoughts as facts rather than mental events. Once fused, you organize your behaviour around the thought. If you are fused with the thought "I am not good enough to take up space in this conversation," you stay silent. People do not experience your ideas or your presence. You interpret their lack of engagement as evidence that you were right. The belief tightens.
Recognising your core beliefs in your everyday decisions
You cannot change what you do not notice. Core beliefs show up first in the decisions that confuse you later. You say yes to something you do not want, and weeks in you ask yourself why. The answer is usually a core belief you did not know was operating. "I should keep the peace" often masks "If I disagree, I will lose the relationship." "I'm not a creative person" often masks "If I try and fail, I am fundamentally broken." "I need to earn my place here" often masks "My existence is not enough, I must add value to justify taking up space."
Core beliefs also show up in what you notice and what you dismiss. If you hold a core belief that people are fundamentally selfish, you will interpret ambiguous behaviour as evidence of selfishness. A partner working late is self-absorbed, not busy. A friend not returning your message quickly is pulling away, not distracted. You are not making this up. You are noticing through the lens the belief provides. The belief generates the thought, the thought filters your perception, and perception confirms the belief. This is why someone else looking at the same situation sees something completely different.
The cost is specificity. A core belief operates at a level above your actual values, and it prevents you from seeing what you actually value. You might hold a genuine value for authentic connection while holding a core belief that people cannot be trusted, and these two cannot co-exist without creating a constant internal conflict. You will feel pulled toward connection and repelled by vulnerability. You will call this "selective about people" rather than recognising the core belief underneath. Without seeing the belief itself, you cannot make a genuine choice about whether it fits your life now. The pattern keeps running because it has never been named.
Moving from belief to choice
Seeing a core belief for what it is does not require you to eliminate it or convince yourself it is wrong. It requires recognising it as a thought that arose from your history, not as truth about how things are. This is the shift from fusion to defusion in ACT terminology. The thought still appears. "I'm not good enough." But it appears as a thought, not as a fact about your capability.
Once you can see the thought clearly, you have a genuine choice about whether to organize your behaviour around it. Someone with a core belief about incompetence might still feel that automatic thought arise when facing a challenge, but they can choose to attempt the challenge anyway. The belief does not disappear. Your relationship to it changes. You are no longer following its instructions automatically.
This is where clarity about your actual values becomes possible. When you remove the lens of the core belief, you can see what you genuinely care about underneath. The My Values assessment surfaces your values, ranks them, and shows you where you are and are not living them, which often reveals the core beliefs that are getting in the way.
What is the difference between a core belief and a value?
A core belief is an assumption about how things are. A value is what matters to you about how things should be. A core belief might be "I am not worthy of love." A value might be "I value intimate connection." These can operate in opposite directions if you hold both. Values are what you want to be true. Core beliefs are what you assume is true, often without realising you are assuming it.
Can core beliefs change?
Yes, but not through willpower or positive thinking. Core beliefs change through repeated experience that contradicts them and through deliberate practices like cognitive therapy or schema therapy that help you examine the belief and build new neural pathways. The change is gradual and requires you to notice when the belief is operating and choose a different response over time.
Why do I hold a core belief if it makes my life harder?
Core beliefs form in response to actual events in your history and they served a protective function. A core belief that "I must be perfect to be acceptable" might have developed in a family where approval was conditional. That belief protected you then by giving you a strategy. It persists even when the environment changes because the belief lives in your nervous system, not in your conscious reasoning.
How do I know if a thought is a core belief or just something I am thinking?
Core beliefs feel like facts. They do not feel like opinions you could disagree with. When you notice a thought that feels absolutely true, recurring across different situations, and tied to how you organize major decisions, that is likely a core belief. Core beliefs show up repeatedly in the same patterns of thought and behaviour, especially in moments of stress or decision-making.