Final answer:
Plato created the city of Atlantis to convey philosophical ideas and moral lessons.
Step-by-step explanation:
Plato's motive to make up the city of Atlantis can be attributed to his desire to illustrate certain philosophical ideas and convey moral lessons. In Plato's dialogues, Atlantis is used as a hypothetical example to elucidate concepts such as ideal governance, the dangers of materialism, and the consequences of hubris. By creating a fictional society, Plato aimed to emphasize the importance of justice, moderation, and the pursuit of knowledge.
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