Especially if they are true; it's best to keep it hush hush

Some months ago an American philosopher explained to a highly sophisticated audience in Britain what, in his opinion, was wrong, indeed fatally wrong, with the standard neo-Darwinian theory of biological evolution. He made it crystal clear that his criticism was not inspired by creationism, intelligent design or any remotely religious motivation. A senior gentleman in the audience erupted, in indignation: ‘You should not say such things, you should not write such things! The creationists will treasure them and use them against science.’ The lecturer politely asked: ‘Even if they are true?’ To which the instant and vibrant retort was: ‘Especially if they are true!’ with emphasis on the ‘especially’. (HT: Crude) 

Here. 

Once again, just for fun, I am including a link to the Pistol Annies' song "Hush Hush." 

Hush hush don't you dare say a word
Hush hush don't you know the truth hurts
Hush hush when push comes to shove
It's best to keep it hush hush
Best to keep it hush hush