According to @QCompounding, Charlie Munger called William Green’s Richer, Wiser, Happier one of the best investing books ever written, underscoring its practical edge for investor decision-making (source: @QCompounding, Nov 16, 2025). According to William Green in Richer, Wiser, Happier, elite investors prioritize downside protection and a margin of safety, concentrate capital only when odds are clearly asymmetric, stay patient to let compounding work, use checklists to cut errors, avoid excessive leverage and complexity, keep turnover and emotions low, and clone proven strategies judiciously; traders can translate these into strict risk limits, selective position sizing, and longer holding periods for high-quality setups (source: William Green, Richer, Wiser, Happier, 2021).