Quotes from book
On Certainty

On Certainty
Ludwig WittgensteinOriginal title Über Gewißheit (German, 1969)

On Certainty is a philosophical book composed from notes written by Ludwig Wittgenstein over four separate periods in the eighteen months before his death on 29 April 1951. He left his initial notes at the home of Elizabeth Anscombe, who linked them by theme with later passages in Wittgenstein's personal notebooks and , compiled them into a German/English parallel text book published in 1969. The translators were Denis Paul and Anscombe herself.


Ludwig Wittgenstein photo

“612. At the end of reasons comes persuasion.”

Ludwig Wittgenstein book On Certainty

On Certainty (1969)

Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo

“378. Knowledge is in the end based on acknowledgement.”

Ludwig Wittgenstein book On Certainty

On Certainty (1969)

Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo
Ludwig Wittgenstein photo

“What stands fast does so, not because it is intrinsically obvious or convincing; it is rather held fast by what lies around it.”

Ludwig Wittgenstein book On Certainty

On Certainty (1969)
Context: 144. The child learns to believe a host of things. I. e. it learns to act according to these beliefs. Bit by bit there forms a system of what is believed, and in that system some things stand unshakeably fast and some are more or less liable to shift. What stands fast does so, not because it is intrinsically obvious or convincing; it is rather held fast by what lies around it.

Ludwig Wittgenstein photo

“The system is not so much the point of departure, as the element in which our arguments have their life.”

Ludwig Wittgenstein book On Certainty

On Certainty (1969)
Context: 105. All testing, all confirmation and disconfirmation of a hypothesis takes place already within a system. And this system is not a more or less arbitrary and doubtful point of departure for all our arguments; no it belongs to the essence of what we call an argument. The system is not so much the point of departure, as the element in which our arguments have their life.

Ludwig Wittgenstein photo

“All testing, all confirmation and disconfirmation of a hypothesis takes place already within a system.”

Ludwig Wittgenstein book On Certainty

On Certainty (1969)
Context: 105. All testing, all confirmation and disconfirmation of a hypothesis takes place already within a system. And this system is not a more or less arbitrary and doubtful point of departure for all our arguments; no it belongs to the essence of what we call an argument. The system is not so much the point of departure, as the element in which our arguments have their life.

Ludwig Wittgenstein photo

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