The mind is like a muscle and if you want it to be really powerful, you got to work it out. Each new fact gives you another choice. Each new idea builds another muscle and it’s those muscles that are going to make you really strong. Those are your weapons and in this unsafe world, I want to arm you. Okay, look, if at the end of the term, you’re not faster, stronger and smarter, you will have lost nothing. But if you are, you’ll be that much tougher to knock down.
