The mechanism which we don't understand is not anything in our soul, but rather that of the life of this expression. - Ludwig Wittgenstein

The gramophone record, the musical thought, the score, the waves of sound, all stand to one another in that pictorial internal relation, which holds between language and the world.
To all of them the logical structure is common.
(Like the two youths, their two horses and their lilies in the story. They are all in a certain sense one.)

Scepticism is not irrefutable, but obviously nonsensical, when it tries to raise doubts where no questions can be asked. For doubt can exist only where a question exists, a question only where an answer exists, and an answer only where something can be said. (6.51)

Russell's books should be bound in two colours, those dealing with mathematical logic in red — and all students of philosophy should read them; those dealing with ethics and politics in blue — and no one should be allowed to read them.