The whole poem:
昔日龌龊不足夸,
今朝放荡思无涯。
春风得意马蹄疾,
一日看尽长安花。 'The hardships of the past are not worth mentioning; today my thoughts roam free without limit. Riding high on the spring breeze, my horse's hooves fly; in one day I see all the flowers of Chang'an.'
孟郊 passed in 796, after failing twice.