This system allows to each material in its place, and in fact, learn to distinguish what comes from the outside, what credit should be given to it, and have more mental flexibility and discernment.
Of "errors rankings" among us who live materials are presented, and personally I got well recognized, and this gives the opportunity to gain insight, essential quality of our days or a multitude of information of all kinds we assail daily.
A profound book that presents a useful tool. A advisor.