Coworkers as your enemy

I dont want to have enemies, especially at work area. But sometimes you cant avoid having angry conversation when some problems occur. But i am a person who is " its just work, nothing personal". If the work is the problem, i wont snob you forever in my life. No i dont do that, and some people really ashame to have me as their enemy because i dont really react badly to them. if one person is angry to you, let it be. just mine your own work. There will be time they will offer you peace, because they dont really see you as mad like them. Envy is the one that is hard to avoid in office work, the reason where a lot of people fighting for positions/salaries/benefits.