Depend upon it, there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance therefore not to have useless facts elbowing out the useful ones.
Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a British writer and physician, most noted for his character Sherlock Holmes and his detective fiction, which are generally considered milestones in the field of crime fiction.
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