What is Evangelization?

Found this quote in my reading for my study through the book of Acts. Pretty interesting quote by Hugh Thomson Kerr on where our emphasis of evangelism should be as a universal Church of Christ.

We are sent not to preach sociology but salvation; not economics but evangelism; not reform but redemption; not culture but conversion; not progress but pardon; not a new social order but a new birth; not revolution but regeneration; not renovation but revival; not resuscitation but resurrection; not a new organization but a new creation; not democracy but the gospel; not civilization but Christ; we are ambassadors not diplomats.