I am still at Trattenbach, surrounded, as ever, by odiousness and baseness. I know that human beings on the average are not worth much anywhere, but here they are much more good-for-nothing and irresponsible than elsewhere.

Our greatest stupidities may be very wise.

It is not humanly possible to gather immediately from it what the logic of language is. Language disguises thought.

Everything that can be said, can be said clearly.

If we spoke a different language, we would perceive a somewhat different world.

The classifications made by philosophers and psychologists are like trying to classify clouds by their shape.

All philosophy is a 'critique of language' (though not in Mauthner's sense). It was Russell who performed the service of showing that the apparent logical form of a proposition need not be its real one.