"Your battles inspired me - not the obvious material battles but those that were fought and won behind your forehead"

In this quote, James Joyce is expressing his appreciation for somebody's self-confidence and resilience. He acknowledges that the battles that genuinely influence him are not the physical or material ones, however rather the internal struggles that are combated and gotten rid of within one's mind. These battles, hidden behind the forehead, are often the most hard and challenging to conquer. Joyce is recognizing the power and determination it requires to get rid of these inner fights and is motivated by the individual's ability to do so. This quote highlights the significance of mental strength and the effect it can have on others.