“We all enter a period of agony, when our heart is hungry and the only one who could feed it, never will.”

Variant: Love is,” she repeated slowly, looking only at Dasha, “when he is hungry and you feed him. Love is knowing when he is hungry
Source: The Bronze Horseman

Dom Helder Camara, Brazilian archbishop, as quoted in Peace Behind Bars : A Peacemaking Priest's Journal from Jail (1995) by John Dear, p. 65; this is a translation of "Quando dou comida aos pobres chamam-me de santo. Quando pergunto por que eles são pobres chamam-me de comunista."
Variant translations:
When I give food to the poor, they call me a saint. When I ask why are they poor, they call me a Communist.
When I give food to the poor, they call me a saint. When I ask why the poor have no food, they call me a Communist.
Misattributed

Twitter 15 Oct 2018
2018

David Lloyd George
Misattributed

Nobel lecture (2005)

Source: Lullaby (2002), Chapter 14

1979

1985