Hawzah News Agency – The commander of the faithful, Imam Ali peace be upon him says:

مَن نَظرَ في عُيوبِ النّاسِ فأنْكَرها ثُمّ رَضِيَها لِنَفْسِهِ فذلكَ الأحمَقُ بعَينِهِ.

'The one who pries into the faults of people, rebukes them and then adopts those faults himself is truly a fool.'

Source: Nahj al-Balagha, Saying 349