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Who are you? If I ask you this question, you might answer telling me the kind of

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things you like, what you do, or what your physical aspect looks like. Now, this is

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what we call your personal identity, those features that make you unique, that

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make you different from everybody else. Now, your personal identity distinguishes

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you from all the other people, but is it something you can choose? In part, it is,

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because you decide what you do, you change your habits, and you make your

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personality with time, but in part, it is something that you cannot change. You

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cannot choose your physical aspect or the features of your face. Those are

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things you were born with, so personality, that is, your way of being, has two parts.

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One of them is called temperament. The other part is called character.

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Temperament is genetic. It is based on biology. It is coded in your genes, in

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your DNA, and you have it since your birth, so you cannot change it. For

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example, the basic aspect of your body or the color of your eyes are part of

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these genetic features. Now, character is quite different. Character is acquired.

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You learn it with time. You can change it. You can change it if you modify your

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habits. That's the kind of things you regularly do, so it is quite important to

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think what kind of person you want to become in order to change your habits,

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because that's the part of your personality that you can change.