What opera isn't violent? Two things happen, violence and love. And other than that, name something else. You can't.
“I haven't any sort of plans for the future but I reckon things will work out in some manner.”
“I'm afraid for all those who'll have the bread snatched from their mouths by these machines. What business has science and capitalism got, bringing all these new inventions into the works, before society has produced a generation educated up to using them!”