莫惜繁世锦年华
[mò xī fán shì jĭn nián huá]
Roughly translates to 'Don’t grieve over fleeting years amidst a flamboyant world', indicating don't mourn excessively over time passing or youth fading within a splendid but transient materialistic society. There's an implied suggestion to live freely, not worrying too much about losing good times and external beauties.