"Circumstantial evidence is a very tricky thing," answered Holmes thoughtfully. "It may seem to point very… — Arthur Conan Doyle

"Circumstantial evidence is a very tricky thing," answered Holmes thoughtfully. "It may seem to point very straight to one thing, but if you shift your own point of view a little, you may find it pointing in an equally uncompromising manner to something entirely different."

p. 204Source: Wikiquote · CC BY-SA 4.0