《尚书·虞书·益稷》
我疏通了九州的河流，使它们流到四海，挖深疏通了田间的大水沟，使它们流进大河。
予决九川，距四海，浚畎浍距川；暨稷播，奏庶艰食鲜食。
I cleared the rivers of the nine provinces and caused them to flow into the four seas; I dug deep and cleared the main drainage channels in the fields and caused them to flow into the great rivers.