Its just about work ethic. I have met and studied with many Chinese. Many but not all are hardworking, many are lazy, some are very chill, some are smart. You have to understand that usually when ppl study overseas, its because they have scholarship or because they want to get experience or they plan to migrate. These ppl are obviously hardworking ppl, and since Chinese ppl are large in number, ppl assume that all of them are smart. No offense to any Chinese here, but I think they are just like any other race, there are good and bad and average in them as is in any other nation.