And I said to myself: From now on help anyone and everyone so far as it lies within your power. Cease to be apathetic, indifferent! Exalt yourself by devoting yourself to others, enrich yourself by making everyone's destiny your own, by enduring and understanding every facet of human suffering through your pity. And my heart, astonished at its own workings, quivered with gratitude to the sick girl whom I had hurt unwittingly and who, through her suffering, had taught me the creative magic of pity.

Beware of Pity (1939)