Complex sentence: As a young man he trained as an electrical worker, but enrolled in night classes at the Institute of Archaeology of Hamburg (Volkshochschule zur Archäologie) where he was hard working, passionate about prehistory, drawing the attention and kindness of his teachers.
Split into simpler sentences: As a young man he trained as an electrical worker, but enrolled in night classes at the Institute of Archaeology of Hamburg (Volkshochschule zur Archäologie). He was hard working and passionate about prehistory, drawing the attention and kindness of his teachers.