From
杜甫 Du Fu
《闻官军收河南河北》, written in 763 when Du Fu heard the An Lushan Rebellion was finally suppressed:
白日放歌须纵酒,青春作伴好还乡 - 'in the bright day I must sing aloud and drink deep; with spring as my companion, it's a fine time to return home.' Du Fu's most exuberant poem.