Dear Teacher Barnet, thank you for the two lessons tonight. The content of the second lesson might be a bit challenging for him, but I believe he will gradually understand it through your patient explanations. Learning different subjects and mastering various types of knowledge is essential for him, and I will need your help in this regard going forward. Additionally, Ray has recently been very fond of arguing with others, which might be due to his rebellious phase at six years old. I will patiently guide him, and I kindly ask for your understanding and patience.