折疑論 2.21

2.21

一鈞之鍾。不可容於流泉（三十斤為一鈞。如三十斤鍾。欲容納於長流之水者。無是可也）。

A cup weighing one jun cannot contain a flowing spring. (Thirty catties make one jun. If one wishes for a thirty-catty cup to contain flowing water, it is simply impossible.)