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Metaphysics (Aristotle)

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Aristotle was a great thinker from ancient Greece. He wrote a famous set of books called the *Metaphysics*.

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He often called this work "first philosophy." This name shows he wanted to study the most basic ideas.

Aristotle wanted to know the "why" of things. He believed that being wise means knowing the first causes of things. This is different from just seeing things with your eyes.

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Some scholars think these books were actually notes from his lectures. Because of this, the books can be hard to read. They cover many big topics.

He wrote about what makes a thing real. He called this "substance." He also thought about how things change. He used the words "potentiality" and "actuality" to explain this. Potentiality is the power to change. Actuality is when that change is finished.

His ideas changed the world. Many thinkers in different lands studied his work. For a long time, his books helped people understand the world. They helped people connect science with their own beliefs.

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