How sweet the morning air is! See how that one little cloud floats like a pink feather from some gigantic flamingo. Now the red rim of the sun pushes itself over the London cloud-bank. It shines on a good many folk, but on none, I dare bet, who are on a stranger errand than you and I. How small we feel with our petty ambitions and strivings in the presence of the great elemental forces of Nature!

— Arthur Conan Doyle

I am a brain, Watson. The rest of me is a mere appendix.

— Arthur Conan Doyle

I am afraid that I rather give myself away when I explain," said he. "Results without causes are much more impressive.

— Arthur Conan Doyle

I am an omnivorous reader with a strangely retentive memory for trifles.

— Arthur Conan Doyle

I assure you, my good Lestrade, that I have an excellent reason for everything that I do.

— Arthur Conan Doyle

I care not how humble your bookshelf may be, or how lonely the room which it adorns. Close the door of that room behind you, shut off with it all the cares of the outer world, plunge back into the soothing company of the great dead, and then you are through the magic portal into that fair land whither worry and vexation can follow you no more. You have left all that is vulgar and all that is sordid behind you. There stand your noble, silent comrades, waiting in their ranks. Pass your eye down their files. Choose your man. And then you have but to hold up your hand to him and away you go together into dreamland

— Arthur Conan Doyle

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.

— Arthur Conan Doyle

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

I do not know whether it came from his own innate depravity or from the promptings of his master, but he was rude enough to set a dog at me. Neither dog nor man liked the look of my stick, however, and the matter fell through. Relations were strained after that, and further inquiries out of the question.

— Arthur Conan Doyle

I do not think that life has any joy to offer so complete, so soul-filling as that which comes upon the imaginative lad, whose spare time is limited, but who is able to snuggle down into a corner with his book, knowing that the next hour is all his own. And how vivid and fresh it all is!

— Arthur Conan Doyle