Oaktree Capital's chairman Howard Marks is out with his latest memo. Entitled "It's Not Easy," Marks this time around focuses on lessons from Charlie Munger, the concept of second level thinking and how important it is. Marks also addresses the recent market volatility and highlights some lessons learned. Embedded below is Marks' latest memo, "It's Not Easy:" Read more: http://www.marketfolly.com/2015/09/howard-marks-latest-memo-...