In our world, wisdom comes from experience. Practically speaking, even Scripture backs that up. The sin is in believing that wisdom comes only from experience: that innocence equals naiveté. Mary was a virgin child, and yet even the great pagan philosopher Paul McCartney lauds her wisdom,
"Mary said, 'You see before you the Lord’s servant. Let it be done unto me as you have said.'"
If there’s one thing the humility of the nativity teaches us, it’s that the powerless can have great authority and the inexperienced can have deep wisdom. Mary surrendered herself to the miraculous work of God in her life when she could neither deserve nor comprehend what was taking place. She stated simply, "Let it be." This is true wisdom.
"When if find myself in times of trouble, Mother Mary comes to me, speaking words of wisdom: ‘Let it be.’"