Okay, so I actually didn't read through the whole book the first time, possibly as the earlier ideas in the book are ideas that I had already understood as there are similar ideas in Stoicism. This time I persisted all the way to the ahead, only taking 1 day to read, and I've highlighted so many parts too! Learning about the difference between vertical and horizontal relationships and the separation of tasks will be useful in the years to come. The book is a little frustrating at first, but then it is written as a continual discussion/argument so naturally there are points of frustration, like you would have observing one in real life. But you end up with a satisfying conclusion.