In addition to psychopaths, 'Quantum Night' is also a novel about literally thoughtless people, without inner voices, thoughts in their heads.
An idle head is a boxe for the winde.
A vacant mind invites dangerous inmates, as a deserted mansion tempts wandering outcasts to enter and take up their abode in its desolate apartments.
Power-lust is a weed that grows only in the vacant lots of an abandoned mind.
If you leave the smallest corner of your head vacant for a moment, other people's opinions will rush in from all quarters.
If men's minds were like dominoes, surely his would be the double blank.
Don’t waste your time trying to get into my head. There's nothing there.
The appetites will rule if the mind is vacant.