" The Xinthia were regarded with something approaching affection by even the most ruthless and unsentimental of the galaxy’s Involved, partly because they had done much great work in the past – they had been particularly active in the Swarm Wars of great antiquity, battling runaway nanotech outbreaks, Swarmata in general and other Monopathic Hegemonising Events – but mostly because they were no threat to anybody any more and a system of the galactic community’s size and complexity just seemed to need one grouping that everybody was allowed to like. Utterly ancient, once near-invincibly powerful, now reduced to one paltry solar system and a few eccentric individuals hiding in the Cores of Shellworlds for no discernible reason, the Xinthia were seen as eccentric, bumbling, well-meaning, civilisationally exhausted – the joke was they hadn’t the energy to Sublime – and generally as the honoured good-as-dead deserving of a comfortable retirement. "

― Iain M. Banks , Matter (Culture, #8)