Literary modernism, or modernist literature, has its origins in the late 19th and early 20th centuries, mainly in Europe and North America. Some philosophers, like Georg Lukacs, theorized that literary modernism had its origins in the philosophy of Walter Benjamin. Modernism is characterized by a self-conscious break with traditional styles of poetry and verse. Modernists experimented with literary form and expression, adhering to Ezra Pound’s maxim to “Make it new”. The modernist literary movement was driven by a conscious desire to overturn traditional modes of representation and express the new sensibilities of their time. The horrors of the First World War saw the prevailing assumptions about society reassessed. Thinkers such as Sigmund Freud and Karl Marx questioned the rationality of mankind.