"Since someone ate crabs, others must have eaten spiders as well. However, they were not tasty. So afterwards, people stopped eating them. These people also deserve our heartfelt gratitude."

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Man is said to be a reasoning animal. I do not know why he has not been defined as an affective or feeling animal. Perhaps that which differentiates him from other animals is feeling rather than reason. More often I have seen a cat reason than laugh or weep. Perhaps it weeps or laughs inwardly - but then perhaps, also inwardly, the crab resolves equations of the second degree.

— Miguel de Unamuno