horses: dangerous on both ends and crafty in the middle

Before turning to those moral and mental aspects of the matter which present the greatest difficulties, let the inquirer begin by mastering more elementary problems.

The weak man becomes strong when he has nothing, for then only can he feel the wild, mad thrill of despair.

I think there are certain crimes which the law cannot touch, and which therefore, to some extent, justify private revenge.

We surely know by some nameless instinct more about our futures than we think we know.

I fear that if the matter is beyond humanity, it is certainly beyond me.

I felt Holmes's hand steal into mine and give me a reassuring shake. - Watson