Who said, "Reality is not only stranger than we can conceive but stranger than we can conceive"?

i think the actual saying is this

Reality is not only stranger than we suppose but stranger than we can suppose.
- J. B. S. Haldane

Another variation credited to J. B. S. Haldane:

"The universe is not only stranger than we imagine; but stranger than we CAN imagine."

http://www.vasulka.org/Kitchen/PDF_ExpandedCinema/part3.pdf

I believe both of these pre-date Haldane by around 10-20 years. He certainly should have been aware of Heisenberg and Eddington.

"Not only is the universe stranger than we think, it is stranger than we can think." Werner Heisenberg in 'Across the Frontiers'

http://www.goodreads.com/quotes/164668-not-only-is-the-universe-stranger-than-we-think-it

"Not only is the universe stranger than we imagine, it is stranger than we can imagine." Sir Arthur Eddington

http://www.quotationspage.com/quote/27537.html (although there is some dispute as to the accuracy of this attribution)

What J.B.S. Haldane really said:

"I have no doubt that in reality the future will be vastly more surprising than anything I can imagine. Now my own suspicion is that the Universe is not only queerer than we suppose, but queerer than we can suppose."

Possible Worlds and Other Papers (1927), p. 286

Similar remarks that seem derived from this have in recent years been attributed to Arthur Stanley Eddington, as well as to Haldane, but without citations of an original source:

The universe is not only stranger than we imagine, it is stranger than we can imagine.

The world is not only stranger than we imagine, it is stranger than we can imagine.

Not only is the universe stranger than we imagine, it is stranger than we can imagine.

https://en.wikiquote.org/wiki/J._B._S._Haldane