Melachim B 3:27

Verse 27. And consequently the impure natural man endeavours to preserve his infernal freedom by destroying in himself the capacity to be governed by even natural truth, through the devotion of his rational faculty entirely to selfishness even in ultimates. And thus also the corrupted spiritual man no longer resists the impure natural man, and is confirmed and established in his own evil, and so in aversion from all goodness and truth.