We do not know: we can only guess.
Philosophers
Karl Popper
Austrian-British philosopher (1902-1994), a leading philosopher of science. He proposed falsifiability as the criterion of scientific status; The Open Society (1945) defended liberal democracy. Soros named him mentor.
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Source: ポパー『科学的発見の論理 (The Logic of Scientific Discovery)』第10章 (1959年英訳版)Verified
Karl Popper's Other Quotes
Related Quotes
All things are ungraspable.
-- Pyrrho
Color exists by convention, sweet by convention, bitter by convention; in reality there are only atoms and void.
-- Democritus
I know that I know nothing.
-- Socrates
You must learn all things: both the steadfast heart of well-rounded Truth and the opinions of mortals, in which there is no true trust.
-- Parmenides
For thinking and Being are the same.
-- Parmenides
I know that I do not know.
-- Plato