On my team, I am certainly trying to build a culture centered around being open, honest, and always on the quest for more knowledge to not only improve themselves, but also help the team be smarter through knowledge sharing/transfer. I take this approach because I noticed a trend among a lot of young professionals in that if they find they are the smartest people in the room, then they should quit. I actually dislike this approach because it emphasizes that if you think that you are the smartest, then screw the team and move on. This is often a bad approach because although someone may not know something, if you take the time to show them, they often may help you discover something you did not see.
Therefore, I am focused on building a culture around the opposite as well a more open and casual environment where we can all help ourselves while also pushing the business forward together. No man or woman left behind.