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 …

Quote Origin: 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? Question for 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? Reply from Quote Investigator: In 1949 the …