Whenever you want to explain something to someone, does not begin with scientific theories, or with arguments hard to understand for most people.
The best way to explain something to someone is the story.
Tell a story! A short one but who make him understand what you mean.
For example: you want to explain to a friend that it is wrong to leave the road without a spare tire. Why should you bother with thousands of explanations? Better tells a story - Fact or Fiction - someone left without spare tire and and remained blocked in the middle of nowhere.