Given how much time and investment it takes to generate great works, why are they so easy to steal? I'm willing to accept a hit to production, gold, or science - even great person points. However it requires a great person to generate one work of writing, art, or music; loosing them really hurts! I'm not saying art theft shouldn't be possible - it's fun when you're the one doing it. But it seems to strongly favour the thief. What's the point in having theming bonuses in cities other than your capital if putting great works in those slots is liable to get then nicked? On a similar vein, counter-spies should be more effective at catching spies. If they're not effective at doing their job, why bother using them? Diplomats, spies in enemy cities, and spies in city-states are all effective and give regular rewards. Spies in enemy cities can give a diplomatic penalty if they get caught, but there's always at least one civ who hates you anyway so stealing from them doesn't cost you anything. In fact, it may even provoke your enemy to declare war on you (which makes them look bad, and allows you to fight them without triggering defensive pacts). I get that spying should favor those trying to catch up - and it does. I regularly have tech stolen from me even when I'm not in the top spot. But even a tech only takes 5-20 turns to research; because generating great people scales over time great works are effectively very difficult to replace. I feel like I shouldn't even bother trying to protect my great works, because on average I will end up with more of them trying to steal other people's instead.