Be bold. If you're going to make an error, make a doozy.

The line urges a bias toward courageous action over timid perfectionism. “Be bold” frames risk-taking as a virtue, while “make a doozy” reframes mistakes as acceptable—even preferable—when they arise from attempting something ambitious rather than playing it safe. In this reading, errors become evidence of striving at the edge of one’s abilities, where growth and innovation happen. Attributed to Billie Jean King, the sentiment aligns with a competitive athlete’s mindset: decisive play, learning quickly from failure, and refusing to be constrained by fear of looking foolish. It also functions as broader motivational advice, encouraging people to choose audacity and resilience over caution and self-censorship.