I just recently graduated with a bachelor's in mathematics and I will begin my pursuit of a PhD starting this fall. One question that crossed my mind that I never consider before was when is someone a "mathematician"? Is it when they achieve a certain degree? Is it when that's the title of their job? The same question can be applied to terms like "physicist" or "statistician"? When would you all consider someone to be a "mathematician"? I'm just curious and want to hear opinions.