What can break down Prejudice?

There are always prejudice between Eastern and Western people. Eastern people ought to think that Western people are always tall, strong, and rich. Western people ought to think that Asians are nerds, silent in class, and especially good at math, etc. These are stereotypes which most people fits into, but there are also always a portion of people (which is not a small portion) that doesn't fit into the stereotype. There are always weak or poor Western people, and some Asians are extremely bad with math. Viewing people with prejudice is never a good thing. Every person should try to understand a stranger through communication and their own observations so that people can truly understand each other and that misunderstandings will not happen. People tend to be prejudice on everything. There is a saying that prejudice forms within 7 seconds after one first meet another, and is hard to be changed. I do agree with this saying, but I also believe that prejudice could be broke though communication.