We are really living the American dream, to be a successful brand in the States and in Europe and to steep ourselves in our heritage. But we do it with a sense of humor. We don't take ourselves too seriously in fashion.

This quote is suggesting that it is possible to achieve success without taking yourself too seriously. This can be applied to many situations, but in this particular case it is talking about the fashion industry. The speaker suggests that they have achieved success in the United States and Europe, likely due to their heritage, but they are also successful because they don’t take themselves too seriously in fashion. This speaks to their ability to use humor and lightheartedness when it comes to fashion, which could be a key to achieving success.