Carl Sagan - Pale Blue Dot

Astrophysicist Dr. Neil DeGrasse Tyson, "What is the most astounding fact you can share with us about the Universe?" 

A fascinatingly disturbing thought. Is life rare and are we alone?

Fibonacci numbers - Math is logical, functional and just ... awesome. 

Does your dog experience conscious thought? What about your neighbor? How can you be sure?

"What is consciousness?" simple: It's just math. Why? Because it's the patterns, not the particles, that matter. 

Vilayanur Ramachandran tells us what brain damage can reveal about the connection between celebral tissue and the mind.

Mirror neurons: These neurons allow us to learn complex social behaviors, some of which formed the foundations of human civilization as we know it. 

Neuroanatomist Jill Bolte Taylor had an opportunity few brain scientists would wish for: One morning, she realized she was having a massive stroke.