Last words, referring to the Skolem's paradox
Symbolic Logic
“Hate, it has caused a lot of problems in the world, but has not solved one yet.”
Nearly identical quote attributed to a 1995 TV show, Touched by an Angel https://www.imdb.com/title/tt0732136/quotes: Tess: No, hate has caused a lot of problems in this world, but it's never solved one yet.
Misattributed
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Maya Angelou 247
American author and poet 1928–2014Related quotes

in
Context: If one was sometimes led astray by trying to simplify the elements of a science, it is because one has established systems before putting together a fairly large number of facts. Some assumption, which would be very simple when one considers only a class of phenomena, requires many other assumptions if one wants to leave the narrow circle in which we had initially withdrawn. If nature has offered to produce the maximum effect with minimum causes, it is in all of its laws that it had to solve this major problem. It is without doubt difficult to discover the foundations of this wonderful economy, i. e. the simplest causes of phenomena considered from such a wide point of view. But if this general principle of the philosophy of physics does not lead immediately to the knowledge of truth, it can direct the efforts of the human spirit, by leading it away from theories which relate the phenomena to too many different causes, and by adopting preferably those based on the smallest number of assumptions, which show to be more fruitful in consequences.

“One is always a long way from solving a problem until one actually has the answer.”
"Of Pharaohs and Firearms" http://www.jpfo.org/smith/smith-pharaohs.htm.

Statement on the Atomic Bomb to Raymond Swing, before 1 October 1945, as reported in Atlantic Monthly, vol. 176, no. 5 (November 1945), in Einstein on Politics, p. 373
1940s

Probability Theory: The Logic of Science (2003)

1850s, Address before the Wisconsin State Agricultural Society (1859)