"If we are to survive, we must be willing to change."

"The price of skepticism is the occasional loss of a great idea."

"A book is made of paper, ink, and imagination. It is a portal to new worlds and new ideas."

"The price of skepticism is that you are occasionally fooled. The price of credulity is that you are often fooled."

"One of the saddest lessons of history is this: If we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle."