Literature Reference: 烧得硫黄漫学仙，未胜长付酒家钱。—— 《劝饮酒》 Burning sulphur to learn immortality, yet it's no match for the long payment to the tavern. Source from 'Quan Yin Jiu'.
长: Strengths, merits.
付: Payment, entrustment, dedication.
Meaning: Long-term dedication and perseverance.