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PROTAGORAS

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Man is the measure of all things; of what is, that it is; of what is not, that it is not.

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There are two sides to every question, exactly opposite to each other.

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About the gods, I am not able to know whether they exist or do not exist, nor what they are like in form; for the factors preventing knowledge are many: the obscurity of the subject, and the shortness of human life.

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