True wisdom has a curious way of revealing to yourself your own true ignorance.

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.