“Well, I think," said Nobby, "that when you rule out the impossible, whatever is left, however improbable, ain't worth hanging around for on a cold night wonderin' about when you could be getting on the outside of a big drink.”
“Once you've ruled out the impossible then whatever is left, however improbable, must be the truth. The problem lay in working out what was impossible, of course. That was the trick, all right. There was also the curious incident of the orangutan in the night-time.”
“How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth?”
“When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth.”
“When you get rid of the impossible, what's left is the only answer, no matter how improbable.”
“When the impossible is eliminated, whatever remains, however improbable, is the solution ... unless you're mistaken as to just what is and what isn't impossible.”