the role of a government

I believe that humans are intrinsically selfish beings. We tend to do what's in our best interest and often we can harm others, or do what is not morally right, in order to fulfill our interests.

Therefore, I tend to believe Hobbes argument that government has an authority to secure peace and keep people's natural selfish instinct in check. Otherwise, we'd have a chaotic society. 

I have a hard time imagining a society where everyone coexists peacefully with each other, thus negating a need for a government that Hobbes suggests. I cannot recall a time where humans were not fighting, stealing, or doing harmful things to each other. We do it now, even with a government that is supposed to protect us, so can you imagine what it would be like if we didn't have one to keep us in check?