In Henning Mankell's book "The Troubled Man," the quote "People always leave traces. No person is without a shadow" suggests that everyone has a lasting impact on the world and those around them. It implies that our actions, choices, and the relationships we form all leave behind evidence of our existence and character, often reflected through the memories we create in others.

This quote highlights the idea that no one can completely escape their past and that we are defined by both our light and dark sides. Each interaction we engage in contributes to our personal narrative, creating a shadow that serves as a reminder of who we are and the footprints we leave in life. Mankell’s work explores these intricate aspects of human nature and the complexities of the human experience.