In her book "Grunt: The Curious Science of Humans at War," Mary Roach explores the concept of courage in a unique way. She suggests that courage often stems from the ability to maintain an independent mindset, challenging the norms and beliefs of others. This perspective emphasizes that true bravery may not always involve grand gestures but can simply be the courage to think differently.

Roach's insights highlight the importance of individuality, especially in high-pressure situations like warfare. By valuing the capacity to question prevailing thoughts, she encourages readers to embrace their own perspectives, fostering a deeper understanding of what it means to be courageous in various contexts.