Confusion is an essential part of learning. If confusion is avoided we can never go through it and progress to clarity. Confusion results when we are not sure. While surety is lacking, there is room for learning.
The perplexed student of philosophy asks "how much of me is me?" This is something. At least he is partially unsettled. He may yet become more unsettled, then ask the real question: Is there a me?
Good teachers cover their tracks. They do not wish to mislead people by leaving behind them a tangible path to be followed. Therefore they appear to contradict themselves, and do not give easy answers. The price of answer-giving is high. It prevents people from learning how to think for themselves.