In one sense, I do believe I am "like a man," as Parthe [the writer's sister] says. But how? In having sympathy. … Women crave for being loved, not for loving. They scream out at you for sympathy all day long, they are incapable of giving any in return, for they cannot remember your affairs long enough to do so. … They cannot state a fact accurately to another, nor can that other attend to it accurately enough for it to become information. Now is not all this the result of want of sympathy?
Letter to Madame Mohl (13 December 1861) - The Life of Florence Nightingale (1913)