Young people don't need to flaunt their talent - knowing when to hold back shows greater maturity.
Tips
usage
Slightly negative-leaning. The neutral version is 锋芒 (fēngmáng, sharp edge/talent); 毕露 (bìlù) means 'completely exposed', so the whole phrase says 'edge is fully on display' - usually with the implication that some restraint would be wiser.
history
A recurring theme in Chinese culture, where 藏锋 (cángfēng, hiding one's edge) is often praised over 露锋 (lùfēng, showing it). The idiom describes someone whose talent is too visible, drawing envy before it earns respect.