Hunchback of Solow
I reckon 'sincerity' is something that's learned. It's another ruse that some people can carry off (probably without realising they're doing it) and I've not quite mastered it. I don't believe anyone gives fully of themselves. They adopt the attributes of sincerity, they adopt the tone of voice, all the indicators that say 'this is someone being sincere' while their heart is elsewhere. People talk sincere while they're actions point to the contrary. I don't think anyone is really that sincere. They're all out for themselves.