Abarham Maslow created the 5 basic human needs. Otherwise known as Maslow's hierarchy of needs.
4. self esteem
Now the pyramid works like this, lets say if your first need of survival is not met your safety, belonging, esteem and accusation won't be met the reason is that if your so concerned about the things on the bottom you won't meet the things on the top. Take Dave Pelzer, he was worrying about his survival he couldn't work on belonging. Or you could look at it the way most people would say your hungry or maybe concerned for your safety. you're not worried about your work you're worried about food or getting out of the unsafe place you're in. Just think of it as if you're climbing a ladder.