The man had a way with words.

The recent HN thread Why is the sky blue? is a good example of this - https://news.ycombinator.com/item?id=46946401

Once you start going down the rabbit hole you start asking questions like "does the photon oscillate?", "what exactly is resonant frequency?", "how different is the electron cloud around a molecule from that around its constituent atoms?", "how does a photon passing by/through a molecule cause its electron cloud to oscillate?" etc. The act of clarifying each to oneself in however simple a form is the insight we all crave. Good teachers like Feynman do a great job of it which is why their books are so highly valued.

PS: People might find the recent free book Atomic Physics for Everyone: An Introduction to Atomic Physics, Quantum Mechanics, and Precision Spectroscopy with No College-Level Prerequisites (2025) good for an initial understanding of atomic physics - https://news.ycombinator.com/item?id=46961595