Nothing can be called unhappy if it fulfils its own nature, unless you would conclude that a man ought to be pitied because he cannot fly about with … - Erasmus

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Nothing can be called unhappy if it fulfils its own nature, unless you would conclude that a man ought to be pitied because he cannot fly about with the birds, and cannot run on four feet like the whole family of beasts, and is not armed with horns like a bull.