The correct answer to this open question is the following.
What I feel would be an appropriate first paragraph for his initial speech upon taking power would be something like this.
"Beloved people of Afghanistan. New and better times are coming for this great nation. This new period we are about to begin represents the opportunity to do things differently, correct what was wrong, and improve what was right."
Hamid Karzai was the President of Afghanistan from 2004 to 2014. He had been an advocate for the mujaheddin that demanded the removal of Soviet soldiers from the Afghan territory in the 1980s.