Parsimony Quotes
It really comes down to parsimony, economy of explanation. It is possible that your car engine is driven by psychokinetic energy, but if it looks like a petrol engine, smells like a petrol engine and performs exactly as well as a petrol engine, the sensible working hypothesis is that it is a petrol engine.
Richard Dawkins
In the war [World War 1. ] things were in terrible turmoil. What I had learned at the academy was of no use to me and the useful new ideas were still unready... I felt myself freed and had to shout my jubilation out to the world. Out of parsimony I took what I could find to do this, because we were now an impoverished country. One can even shout with refuse, and this is what I did, nailing and gluing it [gluing his collage art] together. I called it 'Merz'; it was a prayer about the victorious end of the war, victorious as once again peace had won in the end; everything had broken down in any case and new things had to be made out of the fragments; and this is Merz.
Kurt Schwitters
We feel that we are surrounded by the congregated bones of the great men of past times, who have filled history with their deeds, and the earth with their renown. And yet it almost provokes a smile at the vanity of human ambition to see how they are crowded together and jostled in the dust; what parsimony is observed in doling out a scanty nook, a gloomy corner, a little portion of earth, to those whom, when alive, kingdoms could not satisfy, and how many shapes and forms and artifices are devised to catch the casual notice of the passenger, and save from forgetfulness for a few short years a name which once aspired to occupy ages of the world's thought and admiration.
Washington Irving
Newton's own motto, "hypotheses non fingo" was, in a sense, disregarded by Newton himself: he rejected hypotheses only where they violated his own "regula philosophandi", that is to say, his principle of their strict parsimony. In terms of present-day methodology, we reject hypotheses as scientifically meaningless if they are incapable even of indirect test; and we reject them as superfluous or as implausible if they are too complex and artificial to conform with well established canons of inductive probability. But freedom of scientific theorizing must be preserved wherever the conditions of meaningfulness and of economy appear to be satisfied.
Arthur Beer
The intellectually aggressive hedgehogs knew one big thing and sought, under the banner of parsimony, to expand the explanatory power of that big thing to "cover” new cases; the more eclectic foxes knew many little things and were content to improvise ad hoc solutions to keep pace with a rapidly changing world.
Philip Tetlock
