This is the first time I have felt that your advice is actually harmful.
Never under-estimate the power of learning from others. Read whatever you can. Every great discovery is built on the backs of other peoples work. Knowledge is power and always has been.
Your comment about Roger Bannister is way off the mark as well. Roger was inspired by Sydney Wooderson's comeback attempts and his competition with John Landy. It wasn't because he was unaware of what was said about running a sub four minute mile, it was because he it was going to happen, either by himself of John Landy. Landy broke Roger's record with a time of 3:57.9 just 46 days after Roger had set it.