Tā sìtǐbùqín, wǔgǔbùfēn, zhēnshì bù dǒng shēnghuó.
He does no physical work and cannot tell the grains apart — truly out of touch with real life.
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history
From 《论语·微子》: part of the farmer's retort to Zilu — 四体不勤，五谷不分. The 五谷 (five grains) traditionally refer to rice, millet, broomcorn millet, wheat, and beans. The phrase came to label anyone utterly removed from the practical, physical world.
