Wise man is not wise, despite his name. He speaks in broad sweeping generalities, and thinks because he is speaking optimistically that this somehow makes him a sage. Sorry but it just doesn't work that way.

Regardless of what this non-realist says, some people will have problems despite how nice they are, in fact often because of it. It's called the real world, and the nice guy doesn't finish last for no reason. No, in the real world there are bad people everywhere, and despite how well you comport yourself, those bad people will still be around. Just be careful and realize that, this is China, your an outsider, and you don't know the rules. Learn them quick, and you should be ok. Don't believe the very unwise nonsense coming from unwise man though, his vague general way of speaing will get you into a lot of trouble if you choose to believe it.