One cannot discuss ice or cold with a summer insect, as their existence is limited to warmth. This idiom means that it's futile to discuss profound or complex matters with someone whose understanding is limited by their experience, perspective, or knowledge; it describes someone with shallow views or restricted horizons.
你和他说再多道理也没用，简直是夏虫不可语寒，他根本无法理解你的深层想法。
It's useless to explain more principles to him; it's like talking about ice to a summer insect, he simply cannot grasp your deeper thoughts.
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