"During the Seventh Century, when Islam made its last earthly appearance in Arabia, the world was a pretty dishonest place. Everyone lied to everyone and everyone pretty much deceived and stole from everyone.
Islam came and showed the world that Honesty Was the Best Policy. Not only in this world, but also in the next world -- the world after death. And that this honesty and integrity should be practiced with everyone: friend and foe; Muslim and non-Muslim; man, woman and child.
A morally hungry and tired world then jumped to embrace Islam.
That is how Islam converted the world: by teaching it to be fair and honest with everyone." (Dr. Pasha)