There's tons of career advice out there. Students, entrepreneurs, leaders - we all strive for success and acceptance. But when you get to work with a lot of people in a huge variety of industries, functions and business relationship, you quickly realize that the few who stand out have one thing in common – professionalism.
I am not trying to be smart, it's the basics, you're right. Unfortunately, professionalism doesn't follow authomatically with "following a profession", and "being professional" seems to not come naturally to most of us. The reason is that professionalism is nothing that you have, but everything that you do.
Here's the 4 P's that "professional" means to me.