Ludwig Wittgenstein

Ludwig Wittgenstein
Ludwig Josef Johann Wittgensteinwas an Austrian-British philosopher who worked primarily in logic, the philosophy of mathematics, the philosophy of mind, and the philosophy of language. From 1929 to 1947, Wittgenstein taught at the University of Cambridge. During his lifetime he published just one slim book, the 75-page Tractatus Logico-Philosophicus, one article, one book review and a children's dictionary. His voluminous manuscripts were edited and published posthumously. Philosophical Investigations appeared as a book in 1953, and has since come to be...
NationalityAustrian
ProfessionPhilosopher
Date of Birth26 April 1889
CityVienna, Austria
CountryAustria
The object of philosophy is the logical clarification of thought.
The so-called law of induction cannot possibly be a law of logic, since it is obviously a proposition with a sense.--Nor, therefore, can it be an a priori law.
It is possible--indeed possible even according to the old conception of logic--to give in advance a description of all 'true' logical propositions. Hence there can never be surprises in logic.
All propositions are of equal value.
Elementary propositions consist of names.
If you use a trick in logic, whom can you be tricking other than yourself?
What we cannot speak about we must pass over in silence.
There can never be surprises in logic.
It is not humanly possible to gather immediately from it what the logic of language is. Language disguises thought.
A logical picture of facts is a thought.
A picture whose pictorial form is logical form is called a logical picture.
My day passes between logic, whistling, going for walks, and being depressed. I wish to God that I were more intelligent and everything would finally become clear to me - or else that I needn't live much longer.
Perhaps what is inexpressible (what I find mysterious and am not able to express) is the background against which whatever I could express has its meaning.
What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent