> You must do the best you can—if you know anything at all wrong, or possibly wrong—to explain it.
I can imagine a frustrated researcher reading this and muttering, "and what? Risk publication?". Scientific integrity, of which Feynman talks is much more difficult to maintain if the said integrity leads to a substantial decrease in the quality of life. As is known, research is a hit or miss and there will never always be groundbreaking results. But if you are only rewarded for such groundbreaking results, you are then incentivized to package the most interesting aspect of your study while burying away the rest of it.
So long as honesty, not success, is not properly incentivized, science and scientific methods will never prosper to the heights that Feynman talks about.