问题的根本原因在于，在现代世界里，愚蠢的人自以为是，而聪明的人充满怀疑。

In looking for someone to hire, you look for three qualities: integrity, intelligence, and energy. But the most important is integrity because if they don't have that, the other two qualities, intelligence and energy, are going to kill you.

明智地思考却愚蠢地行动，这是人性。