The approach to the offices of Girdlestone and Co. was not a very dignified one, nor would the uninitiated who traversed it form any conception of the commercial prosperity of the firm in question.

Steel True, Blade Straight.

Everything comes in circles. [...] The old wheel turns, and the same spoke comes up. It's all been done before, and will be again.

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

The most difficult crime to track is the one which is purposeless.

The ideal reasoner, he remarked, would, when he had once been shown a single fact in all its bearings, deduce from it not only all the chain of events which led up to it but also all the results which would follow from it.

There are times, young fellah, when every one of us must make a stand for human right and justice, or you never feel clean again.