Not knowing the answer to a question is not a valid excuse for making up a fairytale to explain it.
Why There Is No God: Simple Responses to 20 Common Arguments for the Existence of GodI'd start to explain with the outward sheepish and inner pride of the nerd.
You Are What You Speak: Grammar Grouches, Language Laws, and the Politics of IdentityDon't try to explain everything, but do tell a few good stories.
The Happiness of Pursuit: Finding the Quest That Will Bring Purpose to Your Life