Mark Twain

“ Eddy originated any of the thoughts and reasonings out of which the book Science and Health is constructed; and I cannot believe, and do not believe that she ever wrote any part of that book.
I think that if anything in the world stands proven, and well and solidly proven, by unimpeachable testimony—the treacherous testimony of her own pen in her known and undisputed literary productions—it is that Mrs. Eddy is not capable of thinking upon high planes, nor of reasoning clearly nor writing intelligently upon low ones. ”

“ That with an eye to business, and by grace of her business talent, she has restored to the world neglected and abandoned features of the Christian religion which her thousands of followers find gracious and blessed and contenting, I recognize and confess; but I am convinced that every single detail of the work except just that one—the delivery of the Product to the world—was conceived and performed by another. ”

“ They do seem to me to prove, quite clearly and conclusively, that writing, upon even simple subjects, is a difficult labor for her: that she has never been able to write anything above third-rate English; that she is weak in the matter of grammar; that she has but a rude and dull sense of the values of words; that she so lacks in the matter of literary precision that she can seldom put a thought into words that express it lucidly to the reader and leave no doubts in his mind as to whether he has rightly understood or not ”