趁我还年轻趁我还有劲
[chèn wŏ hái nián qīng chèn wŏ hái yŏu jìng]
Translated as 'While I am young and still energetic', it suggests an eagerness to make most of youth and vigor. This shows the aspiration and positive mindset of not wasting one's youth but making meaningful use of youthful energy.