A rule of thumb is a principle with broad application that is not intended to be strictly accurate or reliable for every situation. It is an easily learned and easily applied procedure for approximately calculating or recalling some value, or for making some determination. Compare this to heuristic, a similar concept used in mathematical discourse, psychology, and computer science, particularly in algorithm design.
Read more about Rule Of Thumb: Origin of The Phrase, Thumb As Measurement Device, Thumb Used For Regulation, Examples of Usage
Famous quotes containing the words rule of, rule and/or thumb:
“When any practice has become the fixed rule of the society in which we live, it is always wise to adhere to that rule, unless it call upon us to do something that is actually wrong. One should not offend the prejudices of the world, even if one is quite sure that they are prejudices.”
—Anthony Trollope (1815–1882)
“In the animal kingdom, the rule is, eat or be eaten; in the human kingdom, define or be defined.”
—Thomas Szasz (b. 1920)
“I had a consuming ambition to possess a miller’s thumb. I believe I have never since wanted anything more desperately than I wanted my right thumb to be flattened as my father’s had become, during his earlier years of a miller’s life.”
—Jane Addams (1860–1935)