Part 1
Finally, I have unlocked the secret of the soulstones once given to the Horadrim by Tyrael. An impressive creation, to be sure, but one that I am certain can be duplicated. No, not just duplicated - improved upon. My soulstone will be made to contain the souls of many demons, or even angels! -- Zoltun Kulle
Part 2
I believe with this soulstone I will finally be able to unlock the true power of man. In ancient times, our kind possessed power unmatched in this dreary age. With the soulstone, I will be able to elevate myself to the strength of my ancestors. -- Zoltun Kulle