"I have only a bare working knowledge of the human brain but it's enough to make me proud to be an American. Your brain has a trillion neurons and every neuron has ten thousand little dendrites. The system of inter-communication is awe-inspiring. It's like a galaxy that you can hold in your hand, only more complex, more mysterious." "Why does this make you proud to be an American?" "The infant's brain develops in response to stimuli. We still lead the world in stimuli."