My sister and I, you will recollect, were twins, and you know how subtle are the links which bind two souls which are so closely allied.

Dogmas of every kind put assertion in the place of reason and give rise to more contention, bitterness, and want of charity than any other influence in human affairs.

My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram, or the most intricate analysis, and I am in my own proper atmosphere. But I abhor the dull routine of existence. I crave for mental exaltation.

I love and am loved by a better man than he.

Ex-Professor Moriarty of mathematical celebrity... is the Napoleon of crime, Watson.

A fine horse or a beautiful woman, I cannot look at them unmoved, even now when seventy winters have chilled my blood.

Ah! my dear Watson, there we come into those realms of conjecture, where the most logical mind may be at fault. Sherlock Holmes speaking with Dr. Watson.