To the man who loves art for its own sake, it is frequently in its least important and lowliest manifestations that the keenest pleasure is to be derived.

The chief proof of man's real greatness lies in his perception of his own smallness.

Education never ends, Watson. It is a series of lessons, with the greatest for the last.

A trusty comrade is always of use; and a chronicler still more so.

How sweet the morning air is! ...How small we feel with our petty ambitions and strivings in the presence of the great elemental forces of Nature!

I said that he was my superior in observation and deduction. If the art of the detective began and ended in reasoning from an armchair, my brother would be the greatest criminal agent that ever lived. But he has no ambition and no energy. He will not even go out of his way to verify his own solutions, and would rather be considered wrong than take the trouble to prove himself right.

We all learn by experience, and your lesson this time is that you should never lose sight of the alternative. Sherlock Holmes speaking with Dr. Watson.