
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.