Wittgenstein so approved of Leavis's direct honesty in telling him this that he replied, "We must know one another", to which Leavis replied, "I don't see the necessity." Aware that Wittgenstein, an Austrian by birth, was in the room, the man said nervously, "Dr Wittgenstein will correct my German", - to which Wittgenstein rudely replied, "How can I? Norman Malcolm in his Memoir of Wittgenstein, describes this relentless honesty: "Primarily, what made him an awesome and even terrible person, both as a teacher and in personal relationships, was his ruthless integrity, which did not spare himself or anyone else.". [Extracted from the article]