出淤泥而不染
Lilies are whitest in a blackamoor's hand.
eg:He was brought up in slum and became president of the firm, lilies are whitest in a blackamoor's hand.
中英俚语俗语来源:宋·周敦颐·爱莲说:“余独爱莲之出淤泥而不染,濯清涟而不妖,中通外直,不蔓不枝。”
反义词:近朱者赤,近墨者黑 Touch pitch, and you will be defiled.