盲人摸象 blind men and the elephant
Explanation
这个成语比喻对事物只凭片面的了解或局部的经验，就乱加猜测，想做出全面的判断。指对事物认识肤浅，以偏概全，不能全面了解事物的真相。
This idiom refers to making a judgement based on limited knowledge or partial experience.
Origin Story
从前，有几个盲人，他们很想了解大象到底是什么样子。于是他们来到一个养象的地方，围着大象摸来摸去，想通过摸大象来了解它。其中一个人摸到大象的腿，说：“大象就像一根柱子。”另一个摸到大象的耳朵，说：“大象就像一把扇子。”还有一个摸到大象的尾巴，说：“大象就像一根绳子。”其他的盲人也都摸到不同的部位，说了不同的答案。最后，他们都认为自己摸到的才是大象的真实样子。
Once upon a time, there were several blind men who wanted to know what an elephant was like. So they went to a place where elephants were kept and walked around the elephant, touching it. One of them touched the elephant's leg and said, “An elephant is like a pillar.” Another touched the elephant's ear and said, “An elephant is like a fan.” Another touched the elephant's tail and said, “An elephant is like a rope.” The other blind men also touched different parts of the elephant and gave different answers. Finally, they were all convinced that they had recognized the true appearance of the elephant.
Usage
这个成语一般用作比喻，用来讽刺那些只凭片面的了解或局部的经验就乱加猜测、妄下结论的人。
This idiom is usually used as a metaphor to satirize those who jump to conclusions based on limited knowledge or partial experience.
Examples
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盲人摸象的故事告诉我们，不要只凭片面的了解就妄下结论。
máng rén mō xiàng de gù shì gào su wǒ men, bù yào zhǐ píng piàn miàn de liǎo jiě jiù wàng xià jié lùn.
The story of the blind men and the elephant tells us not to jump to conclusions based on only a partial understanding.
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他对问题只了解皮毛，真是盲人摸象，一知半解。
tā duì wèn tí zhǐ liǎo jiě pí máo, zhēn shì máng rén mō xiàng, yī zhī bàn jiě.
He only has a superficial understanding of the problem, he is like a blind man touching an elephant, he only understands a small part of it.