PrIde has an emphasis on the letter "I" due to the fact that only ouselves can bring on pride.
It is the oldest of all sins that dates back to the times when satan himself was once a high angel of God. His pride is what got him kicked out of heaven because he simply thought he had a better plan than God's plan.
He was prideful! We all can have our moments but the important thing is the awareness to catch this when it happens and to live more humbly.