The article delves into the significant role of Justo Ramón Casasús in the professional lives of his sons, Santiago Ramón y Cajal, a renowned Spanish neuroscientist and Nobel laureate. It sheds light on the struggles and contributions of Justo Ramón, who played a pivotal role in guiding his sons' careers despite their youthful rebelliousness. It highlights Justo Ramón's journey from humble beginnings as a barber's apprentice to becoming a surgeon.