The greatest mistake you can make in life is to be continually fearing you will make one.

The line argues that fear of error can be more damaging than error itself. By treating anxiety about mistakes as the “greatest mistake,” Hubbard reframes failure as a normal cost of living and learning, while chronic self-protection becomes a form of self-sabotage. The quote champions agency: a life governed by avoidance shrinks one’s choices, risks, and growth, producing regret and stagnation. Implicitly, it also critiques perfectionism and social fear—worry about judgment can prevent experimentation, creativity, and moral courage. The aphorism’s punch comes from paradox: the attempt to avoid mistakes becomes the very mistake that most undermines a full life.