近朱者赤,近墨者黑 以下皆可表达此意
be influenced by close association
He that lies down with dogs must rise up with flea.
Who keeps company with the wolf will learn to howl；He that lies down with dogs must rise up with flea.
Near vermilion one gets stained pink；touch pitch,and you will be defiled
He that lives with cripples learns to limp.
Keep good men company and you shall be of the number.
If you live with a lame person you will learn to limp.
He that walks with wise men shall be wise；
