Place Unless Both Quotes
- Adam Smith's key insight was that both parties to an exchange can benefit and that, so long as cooperation is strictly voluntary, no exchange can… — Milton Friedman
- The most important single central fact about a free market is that no exchange takes place unless both parties benefit. — Milton Friedman
- The key insight of Adam Smith's Wealth of Nations is misleadingly simple: if an exchange between two parties is voluntary, it will not take place… — Milton Friedman