A book is the only place in which you can examine a fragile thought without breaking it, or explore an explosive idea without fear it will go off in your face. It is one of the few havens remaining where a man's mind can get both provocation and privacy. Edward P. Morgan
A provocation test, also called a provocation trial or provocation study, is a form of clinical trial whereby participants are exposed to either a substance or "thing" that is claimed to provoke a response, or to a sham substance or device that should provoke no response.
In some common law, jurisdictions such as the UK, Canada, and several Australian states, the defense of provocation is only available against a charge of murder and only acts to reduce the conviction to manslaughter.
One of the tragedies of modern times is that people have come to believe that something said by someone in the past, perhaps for illustrative or provocation purposes, actually represents that person's beliefs at the time. Idries Shah
The provocation with Holmes is the fact that he's described by Doyle as a man without a heart - all brain... and that's very difficult to play, or even indicate. Jeremy Brett