Highly influential Austrian-British philosopher (1889–1951) whose greatest contributions were in the fields of logic, philosophy of mathematics, and language. Rare ALS in German, one page on a 5.25 x 3.5 postcard depicting a winter scene, postmarked August 9, 1929. Letter to important philosopher and physicist Moritz Schlick. In full (translated): “Thank you for your card. I have worked a lot & with a little luck. I will send you a letter but the results are difficult to communicate. But we will have to find opportunity to discuss them. I wish you all the best!” In fine condition, with trivial creasing to corner tips.
Schlick was a founding member of the Vienna Circle, a discussion group of philosophers, scientists, and mathematicians who held a common attitude towards philosophy, consisting of an applied logical positivism drawn from Wittgenstein's Tractatus Logico-Philosophicus. What is most interesting is that 1929 represented an important period in the development of Wittgenstein's philosophy, a transition point between the early concepts of the Tractatus and the later Philosophical Investigations. Perhaps Wittgenstein's revelations that resulted in the disavowment of his Tractarian propositions are what he wished to discuss with Schlick, as this letter falls within the timeframe of this important metamorphosis in thought. A rare piece of correspondence by Wittgenstein referencing his work, especially relevant due to the intimate intellectual connection with Schlick and the Vienna Circle. Pre-certified John Reznikoff/PSA/DNA and RR Auction COA.
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