We repeatedly receive some fundamental questions, some of them of philosophical nature, which we're not very keen to answer - not because they weren't legitimate questions, but because we made the experience, that they simply lead nowhere, and, I'll have to admit, because of the lack of knowledge what philosophers already had written about it. To some of those questions there are valuable contributions from other people available, which we often quote, and which should be read, seen or listened to at first. So I thought I'd create a thread, which gathers those links. Thus I'll have a single thread to look up the links, as well as a good recommendation for those, who haven't seen them, yet. Here's my personal collection: Isaac Asimov on the validity of theories: The Relativity of Wrong http://chem.tufts.edu/answersinscience/relativityofwrong.htm Richard Feynman on the reason for research: Do you want to find the GUT? Richard Feynman on the relativity of answers : What is a magnet? Karen E. Smith on how to study: An interview by AMS http://www.ams.org/publications/journals/notices/201707/rnoti-p718.pdf Eugene Wigner on the mathematical language: The Unreasonable Effectiveness of Mathematics in the Natural Sciences https://www.dartmouth.edu/~matc/MathDrama/reading/Wigner.html If you know other valuable sources of this kind, those who bear timeless truth, let us know.