Have You Ever Made Notes On The Margins and then forgot the idea ?

Came up against a page of a book yesterday. In the margins was a comment in ".."s and written there to remind me to check this out so that my memory could be verified. The quote in the margins was :-
" Religion never has you faltering
In the belief that you not they need altering "

Now I cannot find where I got that quote from damit !
But I still like it.