My friend, the superb science writer Ann Finkbeiner, was married to a physicist, hung around physicists, wrote about physicists. She had this to say about them:
Physicists as a group are off-scale intelligent, gossipy, competitive, relentlessly rational, and promiscuously curious. Their taste for pure research comes from the belief that some given truth about the real world exists and that they can find it; and when they’ve found it, sooner or later they’ll all agree it’s the truth. They are fascinated by the congruence between their theories and reality. They are famous for arrogance; because physics is the most fundamental science, physicists say, a physicist can solve any problem in any field by figuring it out from first principles, from the ground up.