An idea can be tested, whereas if you have no idea, nothing can be tested and you don't understand anything. The molecule that you make when you are getting sunburned or when you eat a lot of food is part of the same molecule that contains an endorphin or an opiate. No one has ever had a hypothesis about why the two are together.

I do think one success of Northern Europe, which the United States came from, was its willingness to accept innovation in business practices like Adam Smith and the whole Enlightenment. It essentially made the merchant class free instead of controlled by the king and aristocracy. That was essential.

I've had strong opinions probably since I was born. It makes you unpopular, but what can you do?

James D. Watson Quotes