“Necessity... the mother of invention.”
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Other Plato Quotes
One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors.
Plato 
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Wise men speak because they have something to say; Fools because they have to say something.
Plato
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Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination, and charm and gaiety to life and to everything.
Plato
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We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.
Plato
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