When God devised the creation , He made it impossible to fail because the shear number of the parts make it impossible to overcome by an attempt that is has lesser parts than Gods parts in creation. So all governing systems that protect and uphold freedoms are formed in parts that are sovereign in themselves.
Gods creation then is the working of the law that is weighted by the parts that cannot be numbered. So all the creation is forced to be restrained finding rest in their natural desires under the weight of the parts of the law. This is why you can have an family that is not well educated or is poor and yet those parents are still the best educators that fitted for the child. When you follow the natural desires you fall under the weight of the parts of the law. Nature itself teaches what cannot be taught in opposing the law. This is how God describes the spiritual effects of the blessing that produce the success.Its the same way of saying that Gods view of the history is reasoned out in such a way that no one could question it because it answer all the parts that are too much for us to disagree with.

Its the same principle as learning. Gods word does not teach every little practical thing of life. But the weight of Gods word is the natural way of receiving knowledge and unites Gods blessing with the learning. The question is what does nature teach and that is what unites the weight of the law with the most success of the action.