This reminds me of an anecdote I read about a teacher who asked the students in his classroom to raise their hand if they thought they were of above average intelligence, and ~80 percent of students in the room raised their hand. I think it is common for us to think of ourselves as having higher than average intelligence, but what is "average"? "Average" in terms of what? I like to stray from describing myself or others as "intelligent" or "smart" (or to use the word from the article, "competent") because everyone brings different types of intelligence and competence to the table. So to summarize, I agree with the importance of humility as a quality for teachers to possess, because I think it opens the gates for us to learn as much from our students as they (hopefully) learn from us.