从善如流
If the counsel be good, no matter who gave it.

eg：Jack did not like John, but he accepted his advice- if the counsel be good, no matter who gave it.

中英俚语俗语来源：左传：“从善如流，宜哉。”/国语：“从善如登，从恶如崩。”

同义词：三人行必有我师，择其善者而从之 Keep good men company and you shall be of the number.