Literature Reference: 人实不易知，更须慎其仪。—— 《送高三十五书记》 People are truly hard to understand, so one must be even more cautious in their demeanor. Source from 'Song Gao Sanshi Shuji'.
慎: Be mindful; tread with caution.
仪:
"Demeanor and appearance, often associated with a name, signify gracefulness and appropriateness, leaving a favorable impression."
Meaning: Being cautious and maintaining a proper demeanor, emphasizing the importance of dignified behavior.