Despite his experience co-writing The Bell Curve, Charles Murray went ahead with Human Diversity: The Biology of Gender, Race, and Class:
I’m also at a point in my career when I’m immune to many of the penalties that a younger scholar would risk.
He thought he was careful with The Bell Curve, and it wasn’t enough — if only because no one read the book before attacking it. He has tried being careful again:
Almost all of the findings I report are ones that have broad acceptance within their disciplines. When a finding is still tentative, I label it as such. I know this won’t deter critics from saying it’s all pseudoscience, but I hope the experts will be yawning with boredom because they know all this already.
It has been said that the difference between beating your wife, and being accused of beating your wife, is that in the former case you did derive the satisfaction of which you are convicted.
This is generally known as the Johnny Depp Principle.