As Bertrand Russell said: "The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt." The worse is that other stupid p

As Bertrand Russell said: "The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt." The worse is that other stupid people see confidence as a signal of competence (and give confident people power), when it's actually a negative signal. Truly smart people are usually pretty humble.