What is the saying, "famous paintings will always be stolen"?

I came across this sentence in Chinese:

在欧洲，有这么句俗话：“是名画，总要被盗的。”

Google translate translates it as:

In Europe, there is a saying: “It’s a famous painting, it must be stolen.”

Must is wrongly translated here. The sentence is probably better translated as: “If it’s a famous painting, it will always be stolen.”

I’ve never heard or seen such a phrase before. Does such a saying actually exist?