believe

The longer you learn marketing subjects, the more example of "successful business strategies" you being exposed, which are you actually inspired you. When it comes to business ethic part, you being told that it's unethical to do things that you LEARNT in the past with the exactly same set of examples. At the end, you don't know what to believe anymore. At the end, you don't know what is right and what is wrong anymore. This is so interesting.