Salaam
A famous Sufi said....
There are four things, which go to point out the foolishness of a person, namely:
Not to see his own bad defects in the world;
To be in search of the defects of others;
To sow the seed of stinginess in his heart;
And in spite of it, to expect generosity.
It is also said that "The greatest calamity that befalls the heedless is that they are ignorant of their own faults"
Wasalaam