oly old saws, the people who say, "It's only human!" whenever a more or less repugnant act is pointed out to them, the people who glut themselves on chansons realistes; these are the people who accuse existentialism of being too gloomy, and to such an extent that I wonder whether they are complaining about it, not for its pessimism, but much rather its optimism. Can it be that what really scares them in the doctrine I shall try to present here is that it leaves to man a possibility of choice? To answer this question, we must re-examine it on a strictly philosophical plane. What is meant by the term existentialism? Most people who use the word would be rather embarrassed if they had to explain it, since, now that the word is all the rage, even the work of a musician or painter is being called existentialist. A gossip columnist in Clartes signs himself The Existentialist, so that by this time the word has been so stretched and has taken on so broad a meaning, that it no longer means anything at all. It seems that for want of an advanced-guard doctrine ,analogous to surrealism, the kind of people who are eager for scandal and flurry turn to this philosophy which in other respects does not at all serve their purposes in this sphere. Actually, it is the least scandalous, the most austere of doctrines. It is intended strictly for specialists and philosophers. Yet it can be defined easily. What complicates matters is that there are two kinds of existentialists; first, those who are Christian. among whom I would include Jaspers and Gabriel Marcel, both Catholic; and on the other hand the atheistic existentialists among whom I class Heidegger, and then the French existentialists and myself. What they have in common is that they think that existence precedes essence, or, if you prefer, that subjectivity must be the starting point. Just what does that mean? Let us consider some object that is manufactured, for example, a book or a papercutter: her...