Synthesized answer
The provided passages do not explicitly list questions that remain unanswered. However, they do suggest a foundational uncertainty in the relationship between perception and understanding [Passage 1]. Specifically, it is stated that "The relation between what we see and what we know is never settled" [Passage 1]. This implies that questions about how we truly know what we see, or the definitive nature of our understanding derived from sight, may be ongoing inquiries.
While the passages highlight the transformative power of Berger's work on how we look at pictures [Passage 1], they do not offer a list of remaining unanswered questions. The focus is on how seeing establishes our place in the world and how words attempt to explain it, acknowledging that this explanation is imperfect [Passage 1].
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Ways of Seeing by John Berger Description: How do we see the world around us? The Penguin on Design series includes the works of creative thinkers whose writings on art, design and the media have changed our vision forever."Seeing comes before words. The child looks and recognizes before it can speak.""But there is also another sense in which seeing comes before words. It is seeing which establishes our place in the surrounding world; we explain that world with words, but word can never undo the fact that we are surrounded by it. The relation between what we see and what we know is…