I would tell them (in your own words obviously) that:
1) Nobody really knows
2) Many people claim to know, but
3) Nobody really knows
4) Everything we know about anything came from asking questions
5) Every question is fair game
6) We don't have answers for some questions
7) Anybody who says otherwise to any of these points, should be distrusted
1) Nobody really knows
2) Many people claim to know, but
3) Nobody really knows
4) Everything we know about anything came from asking questions
5) Every question is fair game
6) We don't have answers for some questions
7) Anybody who says otherwise to any of these points, should be distrusted