Aesops FablesAn Old Crab said to her son,Why do you walksideways like that,my son?You ought to walkstraight.母蟹对小蟹说:“我的儿子,为什么你要这样横着走?你应该直行。”The Young Crab replied,Show me how,dearmother,and Ill follow your example.小螃蟹回答道:“妈妈,请您亲自教我怎样走,我会跟着您学的。”The Old Crab tried,but tried in vain,and thensaw how foolish she had been to find fault withher child.母蟹试了几次,却根本不会直走,接着便发现自己竟然愚蠢地去指责孩子的错误。Example is better than precept.身教胜于言传。