There are three depths of knowing.
- Hearsay: You’ve heard of the president. You’ve heard of Mt. Everest.
- Introduction: You’ve been introduced to the President. You’ve visited Mt. Everest.
- Intimately: You’re a good friend of the President. You’ve climbed Mt. Everest.
Understanding comes when you wrestle with these questions:
- What is the most sure thing to you?
- What would be the most impossible thing to doubt?