Glücklicherweise war er, was seinen künftigen Beruf betraf, ebenso gewissenhaft wie praktisch.
Fortunately Tom was as 
conscientious as regards his future profession as he was practical.
 
 
Abdi war gewissenhaft und ernst, Nasser-Ali aufsässig und leichtfertig.
Abdi was 
conscientious and serious, Nasser Ali defiantly and recklessly.