That really sucks -- assuming that person really is the smartest person in the room. You said "their words", which kind of makes me think you don't agree, but I'm not sure.

But for the sake of discussion, let's assume they actually are the smartest person in the room. Unfortunately having that disctinction sometimes means the same person is also the most arrogant person in the room. And that's very unfortunate.

I have had the good fortune to be employed at multiple companies where I worked with some very smart people. I almost all of those cases, the smart people I worked with were easy to talk to, generous with their time, and happy to help me pick up new things, and think about things I might not have otherwise.

If you're very smart, please be one of those kind of people. You'll be happier, you can help make others around you better, and the world will be a better place because of it.

Like in the rest of life, what matters most is what you do with what you've got.