If you read the last post on nihilism and were spooked by the idea that literally nothing matters, existentialism is for you. As a little background, existentialism was a philosophy that directly stemmed as a result of nihilism. While Nietzsche said that nothing matters because we do not have an intrinsic purpose, existentialists said that we can create our own purpose. That being said, there are many different existentialist philosophers; they often directly contradicted each other, but you’ll be able to see that more once we talk about some of the more prominent personal philosophies of some 20th century writers.
Today is centered on Jean-Paul Sartre (1905-1980) and his version of existentialism. Sartre’s philosophy lies on the idea of being-in-itself and being-for-itself. Something that cannot change its essence, or purpose, is described as being-in-itself. For example, a can-opener, in essence, opens cans. No matter how you use it, it doesn’t change the fact that it was made to open cans. Something being-for-itself, on the other hand, is free to choose its own essence. In other words, a person is being-for-itself. That is how people are different from things. One thing that additionally distinguished being-in-itself from being-for-itself is that, unlike things, people don’t have a designer that created them for a specific purpose. For example, a can-opener, was created by a designer that created it for opening cans. Sartre argued that we are not designed by God (or any other higher being), so we are unlike things.
At this point, Sartre’s philosophy sounds a lot like nihilism. Instead of simply accepting that we don’t have an inherent reason to live, Sartre states that we must create our own purpose, or what he refers to as “essence.” We are different from a can-opener because a can-opener’s essence precedes its existence, whereas people exist first, and then create their essence later.
One of Sartre’s most impactful contributions to philosophy is his idea of bad faith. One is in bad faith when they believe they have no choice. Sartre argues everyone always has a choice. People often blame other elements in their lives as the reason they “don’t have a choice.” For example, you’re working your boring 9-5 job, and you hate your boss. You want to talk back, but you can’t because you’ll get fired if you do. You want to speak up, but you have no choice other than biting your tongue and staying quiet. Guess what? You do have a choice. You’re just afraid of owning up to the effects that occur when you exercise one of these options. If you really believe you don’t have a choice, you’re in bad faith. This aspect of Sartre’s philosophy is fairly controversial, and is the reason many turned away from existentialism (unfortunately, he made some very offensive arguments stating that even slaves “had a choice”). This idea of bad faith, though, is one that really distinguishes Sartre’s existentialism from others’.
Sartre definitely contributed some interesting thoughts to modern philosophy. There are many more pillars of thought that he goes through (like facticity, temporality, transcendence, and more), but the foundations to his thought lie in things like essence and bad faith. While philosophy can often be a lot of boring words strung together, Sartre’s philosophy is definitely one worth learning about.