Capital Discipline and the Margin of Safety in Daily Decisions

"Rule #1: Don't lose money. Rule #2: Don't forget rule #1." Buffett's most quoted maxim isn't just for the trading desk — it's the operating philosophy at every Berkshire subsidiary. This module translates margin-of-safety thinking into the everyday behavioral signals interviewers look for: prudent risk-taking, conservative resource use, and a bias against irreversible mistakes.