What is the most resilient parasite? A bacteria? A virus? An intestinal worm? An idea. Resilient. Highly contagious. Once an idea has taken hold of the brain, it's almost impossible to eradicate. An idea that is fully formed, fully understood, that sticks. Right in there somewhere. An idea is like a virus. Resilient. Highly contagious. And the smallest seedof an idea can grow. It can grow to define or destroy you.