I don't mean just seeing something nice and wanting to have something like that. Some people would not mind doing anything to take what belongs to another. Why do we have people like that?
I think that it is a natural characteristic of a lot of humans to desire something that they see nice and something that they dont have. The good thing is sometimes, it motivates a person to work hard for them to acquire what they desire but it goes bad if they think of bad things just to acquire it.