年少的懵懂无知
[nián shăo de mĕng dŏng wú zhī]
'Year young naive' captures the innocence and ignorance of being young, not yet fully experienced in life. It describes that pure and naive state where one is still learning about the world and how it works. Such a user might long for a simple past when their outlook on the world wasn't complex or tainted by life's harsh realities.