Gandhi's wisdom here isn't really about living loudly or performing virtue for an audience—it's about the exhausting impossibility of hypocrisy. He's saying that words become hollow if your actions contradict them, which means you cannot separate your private conduct from your public claims. When a parent tells their child to be honest while cutting corners on their taxes, the child receives the truer message through observation, not through the lecture. Gandhi understood that consistency across all domains—how you treat servants, how you handle money when no one watches, what you do when it costs you—is the only real persuasion available.