Irrationality, The Enemy Within, by Stuart Sutherland

Unsurpisingly, although the world has moved on, people haven’t; and the mistakes they made twenty years ago they still make today. We are still the enemy within.
A Sideways Look at Psychology and Finance
“The time to buy is when there’s blood in the streets”, Nathan Rothschild (attributed).
"When the facts change, I change my mind. What do you do, sir?"; John Maynard Keynes (allegedly: see Quote Investigator)
“Well here, again, Cialdini does a magnificent job at this, and you’re all going to be given a copy of Cialdini’s book. And if you have half as much sense as I think you do, you will immediately order copies for all of your children and several of your friends. You will never make a better investment.”; Charlie Munger on The Psychology of Human Misjudgement.