: When someone cites an "expert" opinion, ask for the reasons behind the conclusion rather than accepting the person's credentials as final proof . Where to Get the Book

: Ask "How did you come to that conclusion?" This ensures the person making the claim is responsible for supporting it with evidence, rather than you having to disprove a baseless assertion .

In his book , Gregory Koukl shifts the focus of evangelism from winning arguments to a "gardening" approach—planting "seeds" or "putting a stone in someone's shoe" to get them thinking . The core strategy, known as the Ambassador Model , emphasizes three pillars: knowledge, wisdom, and character . The Game Plan: The Columbo Tactic

Koukl provides several other "maneuvers" to handle different conversational dynamics:

: Follow a person's logic to its ultimate conclusion to show that it leads to an absurd or unacceptable result .

: Use leading questions to guide the person to a logical inconsistency or a "fly in the ointment" in their own worldview . Key Defensive & Offensive Tactics