“If one abandons all other abilities and focuses his strength entirely on a single specialized skill, then he can overcome even the greatest of powers.”

“...But living creatures are strange. They are made in such a way that they can actualize only what their minuscule minds wish for.”

“Fear is necessary for evolution. The fear that one could be destroyed at any moment.”

“The Sōsuke Aizen you knew...never existed to begin with.”

“i am no one...and i dont want to be anyone”

“Don't use such strong words. It'll only make you look weak.”

“The hero is the one who goes beyond his ability to improve his skills, until he becomes able to improve, and perhaps even alter, the skills of others.”