Abstract
In 1931, Wittgenstein listed ten influences on his intellectual development: ‘I don’t believe I have ever invented a line of thinking,’ he wrote, ‘I have always taken one over from someone else. I have simply straightway seized upon it with enthusiasm for my work of clarification. That is how Boltzmann, Hertz, Schopenhauer, Frege, Russell, Kraus, Loos, Weininger, Spengler, Sraffa have influenced me.’ (CV, 1980, p.19) The order in which these names occur is probably the order in which Wittgenstein encountered them, or their ideas. As we shall see, the title of this article derives from Kraus. But its subject is Loos’s influence on Wittgenstein.