Sartre (1905-1980) is arguably the best known philosopher of the twentieth century. His indefatigable pursuit of philosophical reflection, literary creativity and, in the second half of his life, active political commitment gained him worldwide renown, if not an admiration. He is commonly considered the father of Existentialist philosophy, whose writings set the tone for intellectual life in the decade immediately following the Second World War. Among the many ironies that permeate his life, not the least is the immense popularity of his scandalous public lecture “Existentialism and Humanism,” delivered to an enthusiastic Parisian crowd October 28, 1945.
Though taken as a quasi manifesto for the Existentialist movement, the transcript of this lecture was the only publication that Sartre openly regretted seeing in print. And yet it continues to be the major introduction to his philosophy for the general public. One of the reasons both for its popularity and for his discomfort is the clarity with which it exhibits the major tenets of existentialist thought while revealing Sartre’s attempt to broaden its social application in response to his Communist and Catholic critics. In other words, it offers us a glimpse of Sartre’s thought “on the wing.”
The main idea of Jean-Paul Sartre is that we are, as humans, “condemned to be free.” This theory relies upon his atheism, and is formed using the example of the paper-knife. Sartre says that if one considered a paper-knife, one would assume that the creator would have had a plan for it: an essence. Sartre said that human beings have no essence before their existence because, there is no Creator. Thus: “existence precedes essence”. So, and just for that, the Sartrian man with his freedom will become a god, but he will remain always only a bankrupt god.