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From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.

Arthur Conan Doyle (2007). “The New Annotated Sherlock Holmes: The Complete Short Stories: The Adventures of Sherlock Holmes and The Memoirs of Sherlock Holmes (Non-slipcased Edition) (Vol. 1) (The Annotated Books)”, p.151, W. W. Norton & Company
From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.