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Jean-Paul Sartre is one of the most widely recognized and cited thinkers of existential philosophy. A movement of thinking that took form during the 19th century, fashioned by individuals like Soren Kierkegaard, Friedrich Nietzche, and Fyodor Dostoevsky, and then further popularized by individuals including Albert Camus, Martin Heidegger, and of course, Sartre. In Sartre’s lecture, Existentialism is a Humanism, he famously summarized the primary existential principle with the line, “Existence precedes essence.” The essence here meaning the qualities of a thing that creates its purpose. For example, Sartre references how a paper-knife is designed with a specific purpose in mind before it is made. And only once it is given a predetermined purpose and designed accordingly, is it manufactured into being. In which case, its essence precedes its existence. With exception to itself, humanity does this with nearly everything it makes. As rational beings, we create out of reason. Even if the reason is to make the point that we can create things for no reason, we have merely found ourselves in the paradox of creating for the reason of having none, which remains a reason. We exist with the innate desire for a reason. What we do. Who we are. Why we are. And so on. And here lies the beginning of our existential problem. According to Sartre and many others, there is no predetermined meaning or reason to human life. There is no authority figure designing us or our lives. And there is no essence to our existence prior to our existence. But rather, life exists for itself, and beyond itself, it is intrinsically meaningless. Whenever our sense of reason and logic confront this potential realization, that the nature of life, including the most essential part of our life, our self, appears to not agree with the same order of reason, we can often find ourselves in a sort of existential crisis. However, Sartre and the existentialists don’t see this as despairing, but rather, justification for living.
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