Then sometimes, you meet someone with the attitude, "I must be very intellectually humble, because I already know just about everything!" This sounds like a cheap joke, but I'm serious about this observation. It's easy to fall into this for someone who has been inculcated with the academy's values with regard to knowledge. This not only includes academics, but disciplines with some degree of intellectual rigor, like programming and software development.

Here's a good rule: Don't get so pumped up, that someone else wants to poke you to deflate you.