Now is the dramatic moment of fate, Watson, when you hear a step upon the stair which is walking into your life, and you know not whether for good or ill.

Of all ruins, that of a noble mind is the most deplorable.

Just see how it glints and sparkles. Of course it is a nucleus and focus of crime. Every good stone is. They are the devil

Life, it turns out, is infinitely more clever and adaptable than anyone had ever supposed.

The Adventure of the Noble Bachelor

Problems may be solved in the study which have baffled all those who have sought a solution by the aid of their senses. To carry the art, however, to its highest pitch, it is necessary that the reasoner should be able to use all the facts which have come to his knowledge; and this in itself implies, as you will readily see, a possession of all knowledge, which, even in these days of free education and encyclopaedias, is a somewhat rare accomplishment.

There is nothing like first-hand evidence.