From that time on he launched himself into the world of collecting ancient Taiwan maps and today has over a thousand of them. The earliest is a map of East Asia dated 1554 made by a Portuguese.
從此一頭鑽進台灣古地圖的收藏世界，至今累積上千張古地圖，年代最早的是 1554 年葡萄牙人繪製的東亞地圖。