凌云之志 is an idiom

凌云之志líng yún zhī zhì

凌云：高入云霄的志气。形容远大的志向。

Origin 《汉书·扬雄传》：“往时武帝好神仙，相如上《大人赋》欲以风帝，反缥缥有陵（凌）云之志。”

Word breakdown for “凌云之志”: Open in Reader →

see 凌云县[líng yún xiàn]

(lit. and fig.) towering; lofty; high

之HSK 7–9

1.(possessive particle, literary equivalent of 的[de])2.him3.her4.it+1 more

1.aspiration2.ambition3.the will

1.sign2.mark3.to record4.to write a footnote+1 more