Philosophical Quotes
The first method for estimating the intelligence of a ruler is to look at the men he has around him.
"The Prince". Book by Niccolo Machiavelli, Ch. 22, 1513.
Divide each difficulty into as many parts as is feasible and necessary to resolve it.
"Discourse on the Method". Book by Rene Descartes, 1637.
The production of too many useful things results in too many useless people.
Erich Fromm, Karl Marx (2013). “Marx's Concept of Man: Including 'Economic and Philosophical Manuscripts'”, p.122, Bloomsbury Publishing
The most thought-provoking thing in our thought-provoking time is that we are still not thinking.
"'Was heisst Denken?' ('What is Called Thinking?')". Book by Martin Heidegger, translated by Fred D. Wieck and J. Glenn Gray, 1968.
From each according to his abilities, to each according to his needs.
Critique of the Gotha Program pt. 1 (1875).
"Die Wiener Zeit: Aufsätze, Beiträge, Rezensionen 1926–1936" by Moritz Schlick, (p. 532), 2008.
He who learns but does not think, is lost. He who thinks but does not learn is in great danger.
Confucius (1998). “论语”
Experience without theory is blind, but theory without experience is mere intellectual play.
"General Systems" Vol. 7-8, by he Society for the Advancement of General Systems Theory, (p. 11), 1962.
To be ignorant of what occurred before you were born is to remain always a child.
Marcus Tullius Cicero (1962). “Brutus”, Loeb Classical Library
Moses Maimonides (2010). “The Guide of the Perplexed”, p.452, University of Chicago Press