Quote Origin: There Is Nothing So Disastrous As a Rational Investment Policy In an Irrational World

John Maynard Keynes? Milton Friedman? A. Gary Shilling? Albert J. Hettinger, Jr.? Apocryphal? Question for Quote Investigator: The Forbes magazine website previously had a fascinating searchable database called “Thoughts On The Business of Life” which contained more than 10,000 quotes. The following saying appeared in the database: There is nothing so disastrous as a rational …