Today I listened to George Shultz's July 23rd conversation at the Commonwealth Club (audio). This was my second review of this talk and Q&A. Soon I will listen to the podcast a third time, but after I have finished reading his 2013 book on these topics: Issues on My Mind: Strategies for the Future.
True wisdom is a rare commodity, and usually expensive to acquire (because it often accrues from mistakes). If you can learn from the wisdom of other, then I recommend as much time as you can allocate to Shultz.
George has a view on most of the issues that I worry about. On the issues that I have studied I usually find that he “gets it”. If I don't know much about the issue I find his approach to be logical, consistent and direct.
Directness has been a Shultz trademark as long as I've been exposed to him. His mind cuts the shortest path to the essentials, and then just as directly to a solution can be realized politically. For an efficient review of what Shultz has accomplished please see his Hoover Institution page.