You Are Not So Smart: Why You Have Too Many Friends on Facebook, Why Your Memory Is Mostly Fiction, and 46 Other Ways You're Deluding Yourself

by David McRaney

Bertrand Russell once said, “In the modern world the stupid are cocksure while the intelligent are full of doubt.”

Charles Darwin said it best: “Ignorance more frequently begets confidence than does knowledge.”

Sad people, it seems, are more honest with themselves.