“To become sensitive and pitiful the child must know that he has fellow-creatures who suffer as he has suffered, who feel the pains he has felt, and others which he can form some idea of, being capable of feeling them himself. Indeed, how can we let ourselves be stirred by pity unless we go beyond ourselves, and identify ourselves with the suffering animal, by leaving, so to speak, our own nature and taking his. We only suffer so far as we suppose he suffers; the suffering is not our but his. So no one becomes sensitive till his imagination is aroused and begins to carry him outside himself.” – Jean-Jacques Rousseau, Emile (quoted by Jacques Derrida in Of Grammatology (trans. Gayatri Chakravorty Spivak))