“Knowledge without action is wastefulness and action without knowledge is foolishness.”

“Without the possibility of action, all knowledge comes to one labeled "File and forget."”

Ralph Ellison book Invisible Man

“As a suggested working definition, we may define power as control or influence over the actions of others to promote one's goals without their consent, against their "will," or without their knowledge or understanding.”

Walter F. Buckley (1922–2006) American sociologist

“What is the use of all knowledge, if one does not act in accordance with it? This remark implies that knowledge is regarded as a means to action, and the latter as the real end. One could put the question the other way round and ask: How can we possibly act well without knowing what the Good is? This way of expressing it would regard knowledge as conditioning action. But both expressions are one-sided, and the truth is that both, knowledge as well as action, are in the same way inseparable elements of rational life.”

Johann Gottlieb Fichte book Address to the German Nation

“Knowledge kills action; action requires the veils of illusion.”

Friedrich Nietzsche book The Birth of Tragedy

“Action without theory is reckless; theory without action is worthless.”

Paul Glover (1947) Community organizer in Philadelphia, Pennsylvania; American politician

“The great aim of education is not knowledge but action.”

Herbert Spencer (1820–1903) English philosopher, biologist, sociologist, and prominent classical liberal political theorist

“The great end of life is not knowledge but action.”

Thomas Henry Huxley (1825–1895) English biologist and comparative anatomist

“The great end of life is not knowledge but action. ”

Томас Генри Хаксли (Гексли) (1825–1895)

“Judgement can do without knowledge: but not knowledge without judgement.”

Michel De Montaigne (1533–1592) (1533-1592) French-Occitan author, humanistic philosopher, statesman