From Meng Jiao's (
孟郊) Tang-dynasty poem 《
登科后》 (After Passing the Imperial Exam). Full couplet: 『
春风得意马蹄疾,
一日看尽长安花』— 'spring breeze, all going my way, hooves flying; in one day I see every flower in Chang'an.' Meng wrote it at age 46 after finally passing the jinshi exam, overjoyed after decades of failure. The first half gave us the idiom
春风得意.