Anyone who acquires more than the usual amount of knowledge concerning a subject is bound to leave it as his contribution to the knowledge of the world.
I don't want to sound facetious, but humour is the key to the soul. You know what I mean?
Our people went out every single night trying to stop crime before it happened, trying to take people off the street that they believed were involved in crime. That made us a very aggressive, proactive police department.