Thought

Thought and thinking are ways our minds work when we are not using our senses to see, hear, or touch something. These processes include judging, reasoning, forming ideas, solving problems, and making decisions. We can also think by remembering things, imagining new situations, or quietly talking to ourselves inside our heads. Unlike seeing or hearing, thinking can happen even when nothing is around us.

Many thinkers and scientists have tried to understand what thinking really is. Some believe it involves discovering truths, while others think it means creating ideas from what we sense in the world. Thinking might also be like having a private conversation with ourselves, following rules that connect one idea to another.

Different kinds of thinking help us in many ways. We use judgement to decide if something is true, reasoning to figure things out, problem-solving to reach our goals, and deliberation to choose the best path. Our memories and imagination let us picture things that are not right in front of us, and sometimes we solve problems without even realizing we are thinking about them.

Studying thought is important in many areas, from understanding our own experiences to exploring how the brain works. It helps us learn how we grow and develop, how we talk and communicate, and even how we can create smart machines. Thinking carefully helps us make better choices.

Definition

"Thought" and "thinking" mean different things in psychology and philosophy. They usually describe mental activities that happen without us needing to see, hear, or feel something first. This includes things like considering an idea, deciding if something is true, or solving a problem. Memory and imagination are also types of thought, but simply seeing or hearing something is not.

Sometimes, thought means only certain mental activities, like reasoning or making decisions. Other times, it can mean all kinds of mental processes, whether we are aware of them or not. In some old ways of thinking, like in the Cartesian tradition, the mind is described as a "thinking thing." In modern studies of the mind and brain, called the cognitive sciences, thought can also mean all mental processes. Thought can also mean the results of these mental activities, like beliefs or ideas that a person or a group holds.

Theories of thinking

Many ideas about how we think have been created. These ideas try to explain what happens when we think, but they do not always agree with each other.

One idea says that thinking is like a quiet talk inside our minds where we discuss things we can't see, such as ideas about beauty or goodness. Another idea says that when we think about something, like a tree, our mind holds a copy of what a tree is, even though this copy is not a real tree.

Some believe that thinking is the same as talking to ourselves quietly inside our heads, using words to sort out our ideas. Others think that thinking is just a way our mind connects one idea to another.

Finally, some see thinking as a kind of problem-solving, similar to how a computer works, processing information step by step. Each of these views helps us understand the many ways our minds work when we think.

Types of thinking

Thinking is about making judgments. This means deciding if something is true or false. For example, when we think about whether "all birds can fly," we are judging. We decide what to believe based on what we know.

Thinking also includes reasoning. Reasoning is finding answers from facts we already know. There are two main types of reasoning. One type follows strict rules and gives the right answer if the facts are true. The other type is more flexible and helps us make good guesses when we don’t have all the facts.

We also use thinking to solve problems. This can mean coming up with many possible answers or choosing the best one. Sometimes, solving a problem feels like a flash of insight, where the answer suddenly becomes clear.

Thinking can also involve remembering past events or imagining new situations. These thoughts happen inside our minds without needing to see or hear anything.

Sometimes, we solve problems without even realizing it. The answer might come to us later, even if we weren’t thinking about it. This is called unconscious thought.

In various disciplines

Phenomenology

Phenomenology is the study of how we experience things. One part of this, called "cognitive phenomenology," looks at what it feels like to think. Some thinkers say thinking feels the same as other experiences, like hearing a voice in your head. Others say thinking has its own special feeling but still needs our senses to work.

A common example to understand this is two people listening to a radio in French. One knows French, and the other does not. Both hear the same sounds, but only the person who understands French has thoughts matching the meaning of what is being said. This shows how thinking can add an extra layer to our experiences.

Phenomenologists also study how we make judgments, like deciding if something is true. They look at how our thoughts help us understand the world, similar to how we see it but in a different way. They also explore how our expectations from seeing something, like parts of a house, can sometimes be wrong if the whole thing isn’t what it seems.

Metaphysics

The mind–body problem asks how our thoughts and feelings connect to our physical bodies. Our senses take in information from the world, leading to feelings and desires, like wanting pizza, which makes us act. But how do these thoughts come from something as physical as our brains? Some philosophers think we should see our mind, body, and environment all working together instead of separating them.

Psychology

Cognitive psychology studies how we think, solve problems, remember, and use language. It comes from earlier ideas about how our minds process information. One big name in this field, Jean Piaget, studied how children’s thinking develops over time. He believed that as children grow, they start with simple actions and slowly build up to more complex thoughts and logic.

Psychologists also look at how we make decisions, face challenges, and even create new ideas. They study how fast we process information, how we control our thoughts, and how much we can keep in mind at once. This helps explain how our thinking changes as we get older and learn more.

Psychoanalysis

Psychoanalysis, started by Sigmund Freud, looks at how parts of our mind work. Freud described three parts: the “id,” which has our basic desires; the “ego,” which deals with reality; and the “super-ego,” which holds our morals. He believed that some thoughts and feelings are hidden deep in our minds, especially those we find uncomfortable to face.

Carl Jung expanded on this with the idea of a “collective unconscious,” which contains shared ideas and experiences from all humans, like stories, religions, and morals. While Freud focused on personal hidden thoughts, Jung thought we also share deeper, universal parts of our minds.

Related concepts and theories

Laws of thought

The term "laws of thought" refers to three important rules of logic: the law of contradiction, the law of excluded middle, and the principle of identity. The law of contradiction says that something cannot both be true and not true at the same time. The law of excluded middle says that either something is true or it is not true. The principle of identity says that everything is the same as itself. These laws help us understand how we should think.

Counterfactual thinking

Counterfactual thinking means thinking about things that did not happen. It involves asking "what if" questions, like imagining what would have happened if you had made a different choice. This type of thinking helps us learn from the past.

Thought experiments

Thought experiments are imaginary situations we think about to understand what might happen. They are like experiments in our mind. One famous example is the Chinese room argument. Thought experiments are used in many areas, like philosophy and science.

Critical thinking

Critical thinking is a careful way of thinking that helps us decide what to believe or how to act. It means looking closely at the facts and thinking clearly. Critical thinking is important in education because it helps people learn to form their own ideas.

Positive thinking

Positive thinking means focusing on the good parts of a situation. It is linked to optimism and can help people feel better. It is important to balance positive thinking with realistic thinking.