I started Physics grad school this Fall, but I have recently started considering dropping out, either to join an existing company or to start my own business. I am concerned about how this would look to future employers, both startups and non-startups. I know that getting an MS degree but no phD in Physics does not look great, as it shows that you quit the PhD program. But is getting an MS still better than nothing? Also, will the companies (both startup and non-startup) take my grad school grades seriously? I'm taking QFT right now, and I just don't have the motivation to study hard for the class, and I'm concerned about getting a really bad grade.