失之毫厘,差以千里只稍微差一点儿就会造成很大差误或错误。亦称“失之毫厘谬以千里”例“千里之行,始于足下”,在开始的时候就得有个盘算,才不致“失之毫厘谬以千里”。——《崇高的理想》英a miss is as good as a mile;
差之毫厘,谬以千里亦作“差之毫厘,失之千里。”最初时小小的差错其后果可能酿成极大错误。强调不能有丝毫差错。英a minimal error or deviation results in wide divergence; a small error can lead to a serious result;