“If one considers an article of manufacture as, for example, a book or a paper-knife – one sees that it has been made by an artisan who had a conception of it; and he has paid attention, equally, to the conception of a paper-knife and to the pre-existent technique of production which is a part of that conception and is, at bottom, a formula. Thus the paper-knife is at the same time an article producible in a certain manner and one which, on the other hand, serves a definite purpose, for one cannot suppose that a man would produce a paper-knife without knowing what it was for. Let us say, then, of the paperknife that its essence – that is to say the sum of the formulae and the qualities which made its production and its definition possible – precedes its existence. The presence of such-and-such a paper-knife or book is thus determined before my eyes. Here, then, we are viewing the world from a technical standpoint, and we can say that production precedes existence.”

“Thus each individual man is the realisation of a certain conception which dwells in the divine understanding.”

“We mean that man first of all exists, encounters himself, surges up in the world – and defines himself afterwards. If man as the existentialist sees him is not definable, it is because to begin with he is nothing. He will not be anything until later, and then he will be what he makes of himself. Thus, there is no human nature, because there is no God to have a conception of it. Man simply is. Not that he is simply what he conceives himself to be, but he is what he wills, and as he conceives himself after already existing – as he wills to be after that leap towards existence. Man is nothing else but that which he makes of himself. That is the first principle of existentialism. And this is what people call its “subjectivity,” using the word as a reproach against us.”