"Non sum qualis eram", it has become sort of a tag line for Hypnotechs. It's taken from Horace's Odes, Book 4, 1:
Non sum qualis eram bonae sub regno Cynarae
Which means: "I am not as I was in the reign of good Cinara."
Shortened to "Non sum qualis eram", it translates to "I am not what I once was."
It's fitting on several levels, I am not who I used to be, I've changed a lot over the years. But it also applies to anyone seeking to use hypnosis for change. Once you try hypnosis to change something you have been wanting to change, you will no longer be who you used to be either.