You know my method. It is founded upon the observation of trifles.
You know a conjuror gets no credit when once he has explained his trick, and if I show you too much of my method of working, you will come to the conclusion that I am a very ordinary individual after all.
When you have excluded the impossible, whatever remains, however improbable, must be the truth.
When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth.
When water is near and a weight is missing it is not a very far-fetched supposition that something has been sunk in the water.
When people bury treasure nowadays they do it in the Post-Office bank.
When one tries to rise above Nature one is liable to fall below it.
When once your point of view is changed, the very thing which was so damning becomes a clue to the truth.
When a man writes on a wall, his instinct leads him to write about the level of his own eyes.
When a man has special knowledge and special powers like my own, it rather encourages him to seek a complex explanation when a simpler one is at hand.
When a doctor does go wrong he is the first of criminals.
What one man can invent another can discover.
