长风破浪

From the 《宋书·宗悫传》 (Book of Song, Biography of Zong Que): when his uncle Bing asked the young Zong Que about his ambitions, he answered 愿乘长风破万里浪 - 'I wish to mount the long wind and break ten thousand li of waves'. Li Bai later quoted the line in 《行路难》: 长风破浪会有时，直挂云帆济沧海.

memory

Visual: a ship with sails set, slicing through massive ocean swells. 长风 = the long, sustained wind that fills the sails; 破浪 = cutting through waves. The image is forward, unstoppable motion.