Pity and compassion, sympathy and empathy: we experience these 'forces' in alloy-form. But when we speak of them, we speak as though our common experience is wi

Pity and compassion, sympathy and empathy: we experience these 'forces' in alloy-form. But when we speak of them, we speak as though our common experience is with the pure form of these things. Consider the narrative on the topic between Schopenhauer (compassion) and Nietzsche (pity). Physics plays some part here, if only because compassion involves change and motion, where pity remains emotional.