CEDICT
迟钝、愚笨。《晋书．卷五一．皇甫谧传》：「岂我居不卜邻，教有所阙，何尔鲁钝之甚也！」也作「卤钝」。
重編國語辭典
A foolish head makes for weary feet.
When you don't have brains, your feet get no rest.
Source: Tatoeba