[T]he worst thing one can do to feel one knows things a bit deeper is to try to go into them a bit deeper. - Nassim Nicholas Taleb

Money corrupts those who talk (& write) about it more than those who earn it.

...avoidance of small mistakes makes the large ones more severe.

Think of the following event: A collection of hieratic persons (from Harvard or some such place) lecture birds on how to fly. Imagine bald males in their sixties, dressed in black robes, officiating in a form of English that is full of jargon, with equations here and there for good measure. The bird flies. Wonderful confirmation! They rush to the department of ornithology to write books, articles, and reports stating that the bird has obeyed them, an impeccable causal inference. The Harvard Department of Ornithology is now indispensable for bird flying. It will get government research funds for its contribution.