In Robert Kurson's book "Shadow Divers," the quote by WWII German U-Boat Commander Eric Topp suggests that success is largely influenced by luck rather than meticulous caution. Topp's perspective emphasizes that being overly careful can actually hinder one’s chances of achieving their goals. Instead of playing it safe, taking risks may open up greater opportunities for success.

This idea resonates throughout the narrative as it highlights the adventures of two American divers who bravely pursued the challenge of unraveling a significant World War II mystery. Their journey illustrates the balance between risk and reward, showcasing how a willingness to embrace uncertainty can lead to remarkable discoveries.