This is what I thought: for the most banal even to become an adventure, you must...

This is what I thought: for the most banal even to become an adventure, you must {and this is enough} begin to recount it. This is what fools people: a man is always a teller of tales, he sees everything that happens to him through them; and he tries to live his own life as if he were telling a story.
But you have to choose: live or tell.