Philosophy is a battle against the bewitchment of our intelligence by means of language.
What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.
Logic must look after itself. In a certain sense, we cannot make mistakes in logic.
Ludwig Wittgenstein (1889 – 1951) was an Austrian philosopher known for having inspired two of the century's principal philosophical movements, logical positivism and ordinary language philosophy. Described by Bertrand Russell as 'the most perfect example I have known of genius as traditionally conceived, passionate, profound, intense, and dominating'.