" It didn't matter that so much of what they said made logical sense- or that I couldn't find any more plausible alternatives. I didn't have multiple personalities, I just didn't - and that was that.

And then one day, several years after our first meeting, I walked out of Professor Morton's room and thought. What if he's right? What if there are multiple personalities living in this same body?

Suddenly, for the first time in my life. the whole world began to make perfect sense to me. "

― , All of Me