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Happiness is based on a just discrimination of what is necessary, what is neither necessary nor destructive, and what is destructive. In the middle category, however - that of the unnecessary but undestructive, that of comfort, luxury, exuberance, etc

Ursula K. Le Guin (2016). “The Unreal and the Real: The Selected Short Stories of Ursula K. Le Guin”, p.292, Simon and Schuster
Happiness is based on a just discrimination of what is necessary, what is neither necessary nor destructive, and what is destructive. In the middle category, however - that of the unnecessary but undestructive, that of