Communication...

These Senegalese elders are so articulate. I like it when they say something (in Wolof) that they know is so profound, and they're like: "daygo ma deh?" - like: "ya heard?"

That's what's up. You don't have to be abounding in big words to sound intellectually deep. You'll end up using more words than necessary, and mostly say so little with so much vocabulary. Efficient communicators don't do that; they say so much in so little... See Obama.