Translation

• cheating neither old nor young (idiom)
• treating youngsters and old folk equally scrupulously
• Our house offers sincere treatment to all and fair trade to old and young alike.

Synonyms

• 一视同仁, 不偏不倚, 不徇私情, 公, 公事公办, 公允, 公平, 公正, 公正无私, 公道, 天公地道, 平允, 持平, 正义, 爱憎分明, 秉公, 老少无欺