"Not Only Is The Universe Queerer Than We Think..." J.B.S. Haldane, Evolutionary Biologist, 1927

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"Not only is the world queerer than we think. 
It's queerer than we can think."
J.B.S. Haldane

"Possible Worlds and Other Papers" (1927), J.B.S. Haldane, Evolutionary Biologist

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

Astrophysicist-Mathematician Arthur Eddington re-stated Haldane's observation: 

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

https://en.wikipedia.org/wiki/Arthur_Eddington