“But souls can't be sold. They can only be lost and never found again.”

“The soul is a terrible reality. It can be bought and sold and bartered away.”

“And, in the darkness, David closed his eyes as all that was lost was found again.”

“People get over love. They can live without it, they can move on. Love can be lost and found again. But that won't happen for me. I won't survive you, Eva.”

“I work only with lost and founds.”

“I've sold my soul to the devil.”

“The modern hero-deed must be that of questing to bring to light again the lost Atlantis of the co-ordinated soul.”

“You’re a wondering soul, looking for a peace that doesn’t exist. Lost you will be until you find the one inner truth. We can never hide from what we are. The only hope is to embrace it.’ (Old Seer)”

“I can't go back because I lost all my Soul Reaper powers! - Rukia
You lost your powers? What are they, socks? - Ichigo”

“Nature never repeats herself, and the possibilities of one human soul will never be found in another.”