A man came to a construction site, where stonemasons were working. The man said to one, "What are you doing?"

The stonemason said, "You can see, I'm chipping a stone."

The man walked over to another mason and said, "What are you doing?"

He answered, "I'm building a wall."

The man walked over to a third mason and said, "What are you doing?"

This mason answered, "I am building a cathedral." Ha! All three were doing the same thing, but what a difference perspective makes!