I read a lot of science fiction in my youth - starting with Asimov and Brian Aldiss, whose Hothouse fascinated me. Never really got into Heinlein - not being interested in intergalactic battle-cruisers and space warfare, preferring stories where 'universal' and timeless human characteristics were refracted, viewed at a different angle, so to speak, by some futuristic social setting.
At BNPAndMe, a report on a criminal act and a long quote from Heinlein's Starship Troopers. The criminal tale is depressingly familiar, the quote ? I'm not sure I'd go for Mr Dubois philosophy entire of itself, but I've always liked novels (1984 and Brave New World leap to mind) where the refraction illuminates a truth, or even a part of a truth, of today's world - as viewed from a future one.