I am so clever that sometimes I don't understand a single word of what I am saying.

Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.

They can do all because they think they can.

I see the God complex around me all the time in my fellow economists. I see it in our business leaders. I see it in the politicians we vote for — people who, in the face of an incredibly complicated world, are nevertheless absolutely convinced that they understand the way that the world works.

Nobody can be so amusingly arrogant as a young man who has just discovered an old idea and thinks it is his own.