Pride

S1, E7: The Italian writer Dante called the sin of pride the "Chief of All Sins" - the sin of Satan himself. The sin of pride was condemned by the Bible and the philosopher Socrates, while Romans and Vikings made it their greatest virtue. The sin of pride is thought to have led to the fall of Satan but strangely enough, the most famous story about Satan is NOT in the Bible. So what is the origin of the sin of pride?