This is the homepage of the private person Dirk Lehmann. I don't know what to write to this page. In my opinion the main page of a homepage is an unnecessary page because in the most cases it is a confusing big index where all topics of a site are crushing together. For this reason I can advise to discover this site and not to read the boring index below. It is the best way to get an overview of this site ...
This is the homepage of the private person 
Dirk Lehmann
...