"On that view, risk rises when investments and investment thinking are spread too thin. A strategy of **financial and mental concentration may reduce risk by raising both the intensity of an investor's thinking about a business and the comfort level he must have with its fundamental characteristics before buying it.**"([Location 351](https://readwise.io/to_kindle?action=open&asin=B01J2SLA5O&location=351)) *** **Tags** — [[quotes]], **See Also** -- [[Warren Buffett]], [[Charlie Munger]] **Source** — [[202308141129 — B — The Essays of Warren Buffett]]