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If a statement is false, that's the worst thing you can say about it. You don't need to say it's heretical. And if it isn't false, it shouldn't be suppressed.
Done and done.
Are you better off than you were one year ago, one month ago, or one week ago?
-Tim Ferriss, The 4-Hour Workweek
From this moment forward, remember this: What you do is infinitely more important than how you do it. Efficiency is still important, but it is useless unless applied to the right things.
-Tim Ferriss, The 4-Hour Workweek
Excellent point.
I believe I am accurate in saying that educators too are interested in learnings which make a difference. Simple knowledge of facts has its value. To know who won the battle of Poltava, or when the umpteenth opus of Mozart was first performed, may win $64,000 or some other sum for the possessor of this information, but I believe educators in general are a little embarrassed by the assumption that the acquisition of such knowledge constitutes education. Speaking of this reminds me of a forceful statement made by a professor of agronomy in my freshman year in college. Whatever knowledge I gained in his course has departed completely, but I remember how, with World War I as his background, he was comparing factual knowledge with ammunition. He wound up his little discourse with the exhortation, "Don't be a damned ammunition wagon; be a rifle!"
-Carl Rogers, On Becoming a Person: A Therapist's View of Psychotherapy (1961)
Another learning which cost me much to recognize, can be stated in four words. The facts are friendly.
It has interested me a great deal that most psychotherapists, especially the psychoanalysts, have steadily refused to make any scientific investigation of their therapy, or to permit others to do this. I can understand this reaction because I have felt it. Especially in our early investigations I can well remember the anxiety of waiting to see how the findings came out. Suppose our hypotheses were disproved! Suppose we were mistaken in our views! Suppose our opinions were not justified! At such times, as I look back, it seems to me that I regarded the facts as potential enemies, as possible bearers of disaster. I have perhaps been slow in coming to realize that the facts are always friendly. Every bit of evidence one can acquire, in any area, leads one that much closer to what is true. And being closer to the truth can never be a harmful or dangerous or unsatisfying thing. So while I still hate to readjust my thinking, still hate to give up old ways of perceiving and conceptualizing, yet at some deeper level I have, to a considerable degree, come to realize that these painful reorganizations are what is known as learning, and that though painful they always lead to a more satisfying because somewhat more accurate way of seeing life. Thus at the present time one of the most enticing areas for thought and speculation is an area where several of my pet ideas have not been upheld by the evidence, I feel if I can only puzzle my way through this problem that I will find a much more satisfying approximation to the truth. I feel sure the facts will be my friends.
-Carl Rogers, On Becoming a Person: A Therapist's View of Psychotherapy (1961)
In short, and I can't emphasize this strongly enough, a fundamental issue that any theory of psychology ultimately has to face is that brains are useful. They guide behavior. Any brain that didn't cause its owner to do useful--in the evolutionary sense--things, didn't cause reproduction.
-Robert Kurzban, Why Everyone (Else) is a Hypocrite: Evolution and the Modular Mind
Some environments are worse than irregular. Robin Hogarth described "wicked" environments, in which professionals are likely to learn the wrong lessons from experience. He borrows from Lewis Thomas the example of a physician in the early twentieth century who often had intuitions about patients who were about to develop typhoid. Unfortunately, he tested his hunch by palpating the patient's tongue, without washing his hands between patients. When patient after patient became ill, the physician developed a sense of clinical infallibility. His predictions were accurate--but not because he was exercising professional intuition!
--Daniel Kahneman in Thinking, Fast and Slow
Now let's talk about efficient market theory, a wonderful economic doctrine that had a long vogue in spite of the experience of Berkshire Hathaway. In fact, one of the economists who won--he shared a Nobel Prize--and as he looked at Berkshire Hathaway year after year, which people would throw in his face as saying maybe the market isn't quite as efficient as you think, he said, "Well, it's a two-sigma event." And then he said we were a three-sigma event. And then he said we were a four-sigma event. And he finally got up to six sigmas--better to add a sigma than change a theory, just because the evidence comes in differently. [Laughter] And, of course, when this share of a Nobel Prize went into money management himself, he sank like a stone.