Iyas on Faults: Foolish man cannot recognize his faults

Ibn ‘Asakir reported: Iyas ibn Mu’awiyah, may Allah have mercy on him, said, “No man cannot recognize the defects in his own soul but that he is the greatest of fools.” It was said, “O Abu Wathilah, what is your defect?” Iyas said, “Speaking too much.”

Source: Tārīkh Dimashq 7784

عن بن عساكر قَالَ إياس بْن مُعَاوِيَة رحمه الله ما من رجل لا يعرف عيب نفسه إلا وَهُوَ أحمق قيل يا أَبَا وَاثِلَة فما عيبك قَالَ كثرة الكلام

7784 تاريخ دمشق لابن عساكر