Great change always comes down to the actions of a single person.
But magic, like everything else, follows certain natural laws. Magic needs energy wherever it can find it. If no other source of energy is available, it will take the life force of the magician who created it. That is why every use of magic weakens the magician.
Even that. What is the point in living forever, if it is not with the woman I love?
Once you have been touched by magic, you are forever changed. You leave a trail.
The day we stop learning is the day we die.
"What is the greatest mistake a parent can make?" she asked. "To believe that your children will be just like you."