Elizabeth Anscombe was a showy and extravagant figure; known for smoking cigars, wearing a monocle, and vehemently defending implausible and unpopular ideas. He held old-fashioned views on ethics, given his strong Christian faith. His counterintuitive philosophical work was greatly influenced by Ludwig Wittgenstein, his friend and teacher. Despite his efforts, most of his beliefs remain unpopular, but they continue to have an impact on the history of philosophy. According to Roger Teichmann: "Elizabeth Anscombe was one of the giants of twentieth-century philosophy, a courageous and original thinker."