The discussion centers on finding online sources for public domain papers by notable scientists such as Einstein, Lorentz, and Planck. It highlights that while Web of Science may list relevant papers, access to them may vary. Users are encouraged to utilize resources like Bartleby and Project Gutenberg for free texts, including Einstein's book "Relativity" and his paper on gravitation. Additionally, the forum suggests exploring educational sections for translated works, specifically mentioning a collection of Euler's papers available in LaTeX format.