Achieving long-term investing success doesn't have to be overly complex. We would argue that Warren Buffett's philosophy of emphasizing simplicity (e.g., KISS or Keep It Simple, Stupid investing) is a sound approach.This article was co-produced with Kody Kester.Introducing iREIT®Join iREIT® on Alpha today to get the most in-depth research that includes REITs, mREIT, Preferreds, BDCs, MLPs, ETFs, Builders, and Asset Managers. Our iREIT® Tracker provides data on over 250 tickers with our quality scores, buy t ...