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Continue to ChatI sense that, without sensitivity to physical pain and pleasure, man would not have known self-interest, and consequently know just or unjust acts. Thus, physical sensitivity and self-interest are the authors of all justice. - Jonathan Balcombe from https://whatsmyquote.com/quote/i-sense-that-without-sensitivity-to-physical-pain-and-pleasure-man-would-not-have-known-self-interest-and