Witticism -

As John Maynard Keynes allegedly noted, changing one’s mind when the facts change is a simple truth delivered with sharp clarity.

A well-placed witticism can lighten a serious speech or help an audience relax, but it must arise naturally to avoid appearing flippant. When to Use Wit witticism

Many witticisms carry a "hint of sharpness or irony". For instance, Dorothy Parker once famously remarked of a book, "This is not a book to be tossed away lightly. It should be thrown with great force". As John Maynard Keynes allegedly noted, changing one’s