Obituary has been posted, Teacher Zhang has indeed passed away. He was quite controversial domestically, but provided significant guidance for me during my university years. During my postgraduate entrance exam preparation, watching his lectures was like listening to comedy skits—very entertaining. Regardless of what others think, I've always stood by Teacher Zhang. The dead deserve respect, may the deceased rest in peace, and hope he travels well on his journey. I'll delete these two posts tomorrow as I don't want others to think I'm capitalizing on someone's death.