Norman Mailer's quote suggests that with great achievement comes the potential for darkness or evil within that success. This idea reflects the complexity of human endeavors, emphasizing that, while individuals may reach remarkable heights, they also carry the weight of moral ambiguity and potential flaws in their achievements. Such a perspective invites contemplation on the nature of ambition and the inherent risks involved.

In Kevin Fedarko's "The Emerald Mile," this theme resonates throughout the narrative of extraordinary feats undertaken through the Grand Canyon. The interplay of human ambition, creativity, and the unpredictable forces of nature mirrors Mailer's assertion, highlighting the duality in the pursuit of greatness. As adventures unfold, they reveal that triumphs often come hand-in-hand with challenges and ethical dilemmas.