In today's Gospel reading from Matthew 10, Jesus sent his Apostles to proclaim the kingdom of heaven at hand. I am sure they simply proclaimed what they'd heard from the Lord, their personal experiences. I still feel this is the way to spread the good news. Theology, debates, abstract teaching have never worked effectively. To evangelize the world, we need to know the Lord, experience him, and live him, then we'll be ready to convert others through giving testimonies and by example.