“Wittgenstein's Tractatus Logico-Philosophicus has proven to provide the ultimate truth on the issues it addresses, whether or not it does, it certainly deserves – due to its purpose, breadth, and depth – to be considered a significant event in the philosophical world. Starting from the principles of Symbolism and the necessary relationships, in every language, between words and things, it applies the findings of this research to various areas of traditional philosophy, showing, in each case, how traditional philosophy and traditional solutions arise from ignorance of the principles of Symbolism and from the misuse of language.

The logical structure of propositions and the nature of logical inference are the first topics addressed by Wittgenstein. From there, we successively move to the Theory of Knowledge, the Principles of Physics, Ethics, and finally, the Element of the Mystical (das Mystische).”

[from the Introduction of BERTRAND RUSSELL's book]