The world is big enough for us. No ghosts need apply.

horses: dangerous on both ends and crafty in the middle

An absence of antecedents and of relatives is sometimes an aid rather than an impediment to social advancement . . .

I think that I had better go, Holmes." "Not a bit, doctor. Stay where you are. I am lost without my Boswell.

When such men, who are beyond hope and fear, begin in their dim minds to see the source their woes, it may be an evil time for those who have wronged them. The weak man becomes strong when he has nothing, for then only can he feel the wild, mad thrill of despair.

Our ideas must be as broad as Nature if they are to interpret Nature.

The world is full of obvious things which nobody by any chance ever observes.