Just because something can be summarised in a simple way, doesn't necessarily make it simple to begin with.
Think of all the simple and obvious things we read, write and discuss every day: "find customers before building a product", "don't solve problems you don't have yet", "write tests first before writing code".
These are all "simple and obvious" but you couldn't possibly derive any value from reading only those statements without any discussion or analysis of what they really mean.
Likewise, if we take the stuff Covey says about being "principle centred". Reduced to it's simplest summary this says "base your character on unchanging principles to avoid fluctuations". So simple it's basically axiomatic: of course if you base something on an unchanging foundation, it will be less subject to change than if you didn't.
But without his discussion about what the other options are, what it means to be centred in money, self, family, work etc. you don't have a good enough reference point to judge what action you would need to take in order to change your attitude, behaviour or character.
Think of all the simple and obvious things we read, write and discuss every day: "find customers before building a product", "don't solve problems you don't have yet", "write tests first before writing code".
These are all "simple and obvious" but you couldn't possibly derive any value from reading only those statements without any discussion or analysis of what they really mean.
Likewise, if we take the stuff Covey says about being "principle centred". Reduced to it's simplest summary this says "base your character on unchanging principles to avoid fluctuations". So simple it's basically axiomatic: of course if you base something on an unchanging foundation, it will be less subject to change than if you didn't.
But without his discussion about what the other options are, what it means to be centred in money, self, family, work etc. you don't have a good enough reference point to judge what action you would need to take in order to change your attitude, behaviour or character.