A terrific tale from O'Reilly:
Recently, I was looking for a photo to illustrate a talk I was giving at a company meeting. I was telling the old story about three men working. A passerby asks them what they're doing. The first man grunts "working" and goes back to his stonework. The second man says, "I'm building a wall." The third man stops, gazes off into the distance for a moment, and says, "I'm building the most beautiful cathedral in Ireland."