The Brain Attic

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I consider that a man’s brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it. Now the skillful workman is very careful indeed as to what he takes into his brain-attic. He will have nothing but the tools which may help him in doing his work, but of these he has a large assortment, and all in the most perfect order. It is a mistake to think that that little room has elastic walls and can distend to any extent. 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.

— Arthur Conan Doyle, A Study in Scarlet (Sherlock Holmes, #1)

A melhor definição sobre um Cientista da Computação, ever

I like the way computer scientists think because they combine some of the best features of Mathematics, Engineering, and Natural Science. Like mathematicians, computer scientists use formal languages to denote ideas (speci cally computations). Like engineers, they design things, assembling components into systems and evaluating tradeo s among alternatives. Like scientists, they observe the behavior of complex systems, form hypotheses, and test predictions.

— Allen B. Downey, autor de Think Java: How to think like a Computer Scientist