Now is the dramatic moment of fate, Watson, when you hear a step upon the stair which is walking into your… — Arthur Conan Doyle

There is nothing more stimulating than a case where everything goes against you.

We balance probabilities and choose the most likely. It is the scientific use of the imagination.

You never tire of the moor. You cannot think the wonderful secrets which it contains. It is so vast, and so barren, and so mysterious.