Let's take this from the beginning..
Firstly, the disappointing thing was that the book has a misleading title. I didn't bother reading a synopsis of the book, 'cause well the title states clearly enough its subject. Even though Alexander the Great is referred in the book, the author's purpose is not this great historical personality but how we can achieve..achievement. Alexander the Great is used here as an example, as he was a man just like the rest of us, with rich history and many decisions to make and many misfortunes to overcome. His answer concerns the "drive to success" by finding your purpose, by trying to overcome difficulties and by never-ever let yourself indulge in the sneaky ways of "resistance" that waits to thrive in us all, in order to make us lose, to make our purposes die, thus do nothing eventually.
Secondly, I actually liked the book in other ways since it made me realise that I need to find purposes I had lost, try to reach my goals, and this thing about "resistance" was so well put that unfortunately, it made me realise that I 'm a bit of a "rebellion" towards life myself.