I skim read most books as a rule but after the first chapter, I read this one carefully. Various elements of "success" are convincingly described and in relative balance without the pedantry or smugness sometimes found in similar discussions. The author recognizes that the role played by random events is as important as genetic inheritance, inherent social and cultural opportunities and efficient hard work, in determining outcomes. I liked the observation that to be successful you just have to be"smart enough" not necessarily a genius, but would guess that it would help. I also found the connection between language and the learning of arithmetic to be interesting.