All other men are specialists, but his specialism is omniscience.

It was an ideal spring day, a light blue sky, flecked with little fleecy white clouds drifting across from west to east. The sun was shining very brightly, and yet there was an exhilarating nip in the air, which set an edge to a man's energy.

Hot hate is twin brother to hot love.

There are heroisms all round us waiting to be done.

Every man finds his limitations, Mr. Holmes, but at least it cures us of the weakness of self-satisfaction.

It's quite exciting," said Sherlock Holmes, with a yawn.

It is decreed by a merciful Nature that the human brain cannot think of two things simultaneously . . .