At no time is freedom of speech more precious than when a man hits his thumb with a hammer.

The line uses a comic, everyday mishap—striking one’s thumb with a hammer—to argue that free expression matters not only in lofty political debates but also in ordinary human moments. The joke hinges on the near-universal impulse to blurt out an expletive when suddenly hurt; censorship in that instant would feel absurdly intrusive. By shrinking “freedom of speech” to a domestic scene, the quote satirizes solemn rhetoric about rights while also defending a broader principle: speech is a pressure valve for pain, frustration, and spontaneity. Its humor makes the point memorable, suggesting that liberty includes the small, unglamorous freedoms people notice most viscerally.