What good poker players and good decision-makers have in common is their comfort with the world being an uncertain and unpredictable place. They understand that they can almost never know exactly how something will turn out. They embrace that uncertainty and, instead of focusing on being sure, they try to figure out how unsure they are, making their best guess at the chances that different outcomes will occur. - Annie Duke in Thinking in Bets.
I'm a big fan of Howard Marks, Chairman of Oaktree Capital, who writes super-long, highly educational memos that are