Imperfections

It is my hope that you may consider this matter, that you may search out your own imperfections and not think of the imperfections of anybody else. Strive with all your power to be free from imperfections. Heedless souls are always seeking faults in others. What can the hypocrite know of others' faults when he is blind to his own? This is the meaning of the words in the Seven Valleys. It is a guide for human conduct. As long as a man does not find his own faults, he can never become perfect. Nothing is more fruitful for man than the knowledge of his own shortcomings. The Blessed Perfection says, "I wonder at the man who does not find his own imperfections."

‘Abdu’l-Bahá, The Promulgation of Universal Peace, p. 244-245