In an earlier post, I highlighted a wonderful essay titled "Crazy But Correct" by Dan Koshland. In it, Koshland tried to convey the idea that there are many crazy ideas in science that should not be dismissed off-hand. However, such ideas must also pass through the rigorous process of review and quality control.
It is with sadness that Science has reported the passing of this great person (link open for a limited time only). If you have the chance to read that full essay by Koshland, read it! His influence has gone way beyond just his field of study.