Cruelty is pleasure in causing suffering to other living things or even themselves.[1] Sadism can also be related to this as it means someone really enjoying this. Cruel ways of causing suffering may involve violence.
For example, if a person is drowning and begging for help and another person is able to help with no cost or risk, but watches happily.[2] Bertrand Russell said that "the [causing] of cruelty with a good conscience is a delight to moralists. That is why they invented Hell."[2]
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