From Qu Yuan's (
屈原)
离骚 (Li Sao, 'Encountering Sorrow'), Warring States period, c. 3rd century BCE. The famous couplet:
路漫漫其修远兮,吾将上下而求索 - 'The road is long and far; I will seek up and down for it.' Qu Yuan, slandered out of the Chu court, expresses his undimmed pursuit of high ideals; later committed suicide by drowning, commemorated by Dragon Boat Festival.