The perfect presentation start: No smalltalk

The play by Bernard Shaw “Heartbreak House” gives me the opportunity to make a point that separates scientific presentations from others. In the play, a man comes inside the home of the owner and introduces himself so: “Excuse my intruding in this fashion, but there’s no knocker on the door and the bell does not seem to ring.” To which the owner replies: “Why should there be a knocker, why should the bell ring: the door is open!” 

Flickr. gr0uch0
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