Fortunately for Kuo, when he was studying in Taipei, Jiang Jingquan. the proprietor of Taipei ’ s first ever art supplies store, Scholastic Art Store, became his ardent supporter. Jiang gave him the paints he needed without charging him up front, instead deducting the cost of the supplies from the sales of his paintings, which Jiang displayed inside the shop.
幸好在師院就學時，當時台北第一家美術社「學校美術社」老闆姜鏡泉愛才，先提供顏料給他，還讓他把畫作掛在店裡寄賣，賣出時再「抵繳」顏料費，讓他不必為顏料費傷神。