I also appreciated Scott's thoughts on useful core skills, especially psychology. This topic has become more and more interesting to me after sluffing through Pscych 202 in college, when it seems like a diversion from more useful topics. I now see how important that is, and also how little I know in this universe of knowledge. The terms page of psychological topics is a lifetime of potential study in itself, so the book leads you to new domains of study if you so choose.