“Knowledge, surely, is always of time, whereas knowing is not of time. Knowledge is from a source, from accumulation, from conclusion, while knowing is a movement.”
Source: Striking Thoughts (2000), P. 9
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Bruce Lee 193
Hong Kong-American actor, martial artist, philosopher and f… 1940–1973Related quotes

Source: In Praise of Philosophy (1963), p. 5
Context: Even those who have desired to work out a completely positive philosophy have been philosophers only to the extent that, at the same time, they have refused the right to install themselves in absolute knowledge. They taught not this knowledge, but its becoming in us, not the absolute but, at most, our absolute relation to it, as Kierkegaard said. What makes a philosopher is the movement which leads back without ceasing from knowledge to ignorance, from ignorance to knowledge, and a kind of rest in this movement.

Second Lecture, The Elements of the Theory of Probability, p. 30
Probability, Statistics And Truth - Second Revised English Edition - (1957)
Source: For Retiring Bishop Iriondo, ‘Gospel Is Alive’ And To Be Shared https://www.cny.org/stories/for-retiring-bishop-iriondo-gospel-is-alive-and-to-be-shared,10602 (6 February 2014)

Principle attributed to Popper by Ryszard Kapiscinski in New York Times obituary, 1995.
Misattributed
Source: https://www.nytimes.com/1995/01/01/magazine/lives-well-lived-karl-popper-the-philosopher-as-giantslayer.html
Knowing Yourself: The True in the False (1996)
All and Everything: Meetings with Remarkable Men (1963)