From Zhang Zhongjing's 《金匮要略》 (Han): 夫风之为病，当半身不遂 - 'when wind becomes an illness, it causes one-sided non-response of the body.' Chinese medicine's classical term for stroke paralysis, now standard modern medical Chinese.
mistakes
The character 遂 here reads suí ('to follow, respond'), not the usual suì. Same character as in 毛遂自荐 (suì) - but here with its rarer reading.
