“The brain is the only kind of object capable of understanding that the cosmos is even there, or why there are infinitely many prime numbers, or that apples fall because of the curvature of space-time, or that obeying its own inborn instincts can be morally wrong, or that it itself exists.”

“It's so bizarre, I'm not scared of snakes or spiders. But I'm scared of butterflies. There is something eerie about them. Something weird!”