Quote Origin: An Expert Is a Person Who Has Made All the Mistakes Which Can Be Made in a Very Narrow Field

Niels Bohr? Edward Teller? Werner Heisenberg? W. P. Northrup? Benjamin Stolberg? Harry M. Meacham? Eugene Kane? Anonymous? Question for Quote Investigator: Expertise is often acquired by learning from a series of errors. Here are three pertinent statements whose meanings diverge. The similarities suggest that these remarks still belong in the same family: (1) An expert …

Deep Truths Are Statements in Which the Opposite Also Contains Deep Truth

Niels Bohr? Hans Bohr? Werner Heisenberg? Oscar Wilde? Emilio Segrè? Carl Sagan? Anonymous? Dear Quote Investigator: A famous scientist once asserted something like this: The opposite of a deep truth is another deep truth. Would you please help me to find a citation and the correct phrasing? Quote Investigator: In 1949 the prominent physicist Niels …

A Truth in Art Is That Whose Contradictory Is Also True

Oscar Wilde? Niels Bohr? Apocryphal? Dear Quote Investigator: Sometimes a narrow logical analysis is not enough to understand a topic. In the realm of art, the negation of a truth may yield another truth. The famous wit Oscar Wilde once made a claim of this type. Would you please help me to find a citation. …

It’s Difficult to Make Predictions, Especially About the Future

Niels Bohr? Samuel Goldwyn? K. K. Steincke? Robert Storm Petersen? Yogi Berra? Mark Twain? Nostradamus? Anonymous? Dear Quote Investigator: There is a family of popular humorous sayings about the formidable task of successful prognostication. Here are five examples: It is difficult to make predictions, especially about the future. Predictions are hazardous, especially about the future. …

I Understand It Brings You Luck, Whether You Believe in It or Not

Niels Bohr? Albert Einstein? Carl Alfred Meier? Apocryphal? Dear Quote Investigator: There is popular anecdote about a journalist or friend who visited the home of a prominent physicist. The visitor was surprised to find a horseshoe above the front doorway of the scientist’s abode. Tradition asserts that a horseshoe acts as a talisman of luck …