Related quotes
“An empty man is full of himself.”
A Voice Crying in the Wilderness (Vox Clamantis in Deserto) (1990)

Source: His Dark Materials, The Amber Spyglass (2000), Ch. 26 : The Abyss
Context: Your dæmon can only live its full life in the world it was born in. Elsewhere it will eventually sicken and die. We can travel, if there are openings into other worlds, but we can only live in our own. Lord Asriel’s great enterprise will fail in the end for the same reason: we have to build the Republic of Heaven where we are, because for us there is no elsewhere.

“I have a simple philosophy. Fill what's empty. Empty what's full. And scratch where it itches.”
As quoted in The Best (1974), edited by Peter Passell and Leonard Ross.
“Revenge leads to an empty fullness, like eating dirt.”
The Complete Neurotic's Notebook (1981), Unclassified
“In a full heart there is room for everything. In an empty heart there is room for nothing.”
En una alma llena cabe todo y en una alma vacía no cabe nada.
Voces (1943)