Abdullaah Ibnul Mubaarak (rahimahullaah) said: ”From the greatest calamities for a man is that he knows of a shortcoming of his, yet he neither cares nor grieves”.

[Source: Shu’ab Al-Eemaan 1/894- Shared by Dawood [Markaz Mu’aadh (may Allaah protect us and them. Aameen)]