Your personal boundaries protect the inner core of your identity and your right to choices.
Attr. to Gerard Manley Hopkins
My initial thought when a friend brought this to my attention is that there is no way on earth that Hopkins wrote it. I thought it was 20th Century psychobabble, and my friend thought that it was far too un-poetic for Hopkins. And we were both right.
The source is How to Be an Adult: A Handbook on Psychological and Spiritual Integration, by David Richo, published in 1991 by Paulist Press. The epigram at the start of Chapter 7 looks like this:
7. MAINTAINING PERSONAL BOUNDARIES IN RELATIONSHIPS
Your personal boundaries protect the inner core of your identity and your right to choices:
“There lives the dearest freshest deep-down things.”
–Gerard Manley Hopkins
Here’s a Google Books link to the page so you can see it yourself (if GB deigns to do so; it can be finicky about showing previews of copyrighted texts).
I am tempted to say something here about Moralistic Therapeutic Deism, but I’d better not. At any rate, the alleged quotation is definitely faux.