那些年学过的傻那些年犯过的二
[nèi xiē nián xué guò de shă nèi xiē nián fàn guò de èr]
Reflecting on the foolish things one did and learned during youthful and possibly reckless years. It carries nostalgia and maybe a touch of embarrassment for past actions, admitting the naivety and immaturity once had.