Love Letters from Warren - Day 15 (1991)
I read Warren Buffett's 1991 shareholder letter. Here are some investing insights I gleaned
I read Warren Buffett's 1991 shareholder letter. Here are some investing insights I gleaned

Warren discusses how he thinks about the portfolio, and discusses a concept called 'look-through earnings'
There's a great thread on look-through earnings by @10kdiver https://twitter.com/10kdiver/status/1309903384195948544?s=20
He also considers a portion of his public holdings 'permanent', and will not sell them to invest in a more attractive opportunity
Buffett has clearly demonstrated that he is a long-term investor who thinks like an owner. Here he sums up his philosophy