Tractatus Logico-Philosophicus

Tractatus Logico-Philosophicus is the only book-length work published by the philosopher Ludwig Wittgenstein in his lifetime. Originally published in German in 1921 as Logisch-Philosophische Abhandlung, when its author was just 32, it is now widely considered one of the most important philosophical works of the twentieth century. The Latin title was originally suggested by G. E. Moore, and is a homage to Tractatus Theologico-Politicus by Benedictus Spinoza. Wittgenstein´s 'notorious' literary style, his utterly sober and succinct manner of expressing himself, was moulded by the philosophical prose of the great German logician and philosopher Gottlob Frege.

External links

English online versions:

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• http://www.kfs.org/~jonathan/witt/tlph.html
• http://guava.phil.lehigh.edu/tlp/
• {{gutenberg|no=5740|name=Tractatus Logico-Philosophicus}}