one's own shortcomings
自分の欠点を認めようとする人はほとんどいない。
Hardly anyone is willing to admit their own shortcomings.
彼は自分の欠点が分からない。
He doesn't realize his own shortcomings.
自分の欠点を自覚できる人はほとんどいない。
Very few people are aware of their own shortcomings.
彼は自分の欠点に気づいている。
He is aware of his own shortcomings.