As an individual passes from one situation to another, his [sic] world, his environment, expands or contracts. He does not find himself living in ano… - John Dewey

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As an individual passes from one situation to another, his [sic] world, his environment, expands or contracts. He does not find himself living in another world but in a different part or aspect of one and the same world. What he has learned in the way of knowledge and skill in one situation becomes an instrument of understanding and dealing effectively with the situations which follow. The process goes on as long as life and learning continue. Otherwise the course of experience is disorderly, since the individual factor that enters into making an experience is split. A divided world, a world whose parts and aspects do not hang together, is at once a sign and a cause of a divided personality. When the splitting-up reaches a certain point we call the person insane. A fully integrated personality, on the other hand, exists only when successive experiences are integrated with one another. It can be built up only as a world of related objects is constructed.