The essential difference between est and Scientology is two-fold. The first has to do with Scientology’s emphasis on survival and its idea that the purpose of life is survival. est sees the purpose of life as wholeness or completion – truth – not survival...The other main difference between est and Scientology lies in the treatment of knowing. Ron Hubbard seems to have no difficulty in codifying the truth and in urging people to believe it. But I suspect all codifications, particularly my own. In presenting my own ideas, I emphasize their epistemological context. I hold them as pointers to the truth, not as the truth itself. I don’t think anyone ought to believe the ideas that we use in est. The est philosophy is not a belief system and most certainly ought not to be believed. In any case, even the truth, when believed, is a lie. You must experience the truth, not believe it.