Jean-Paul Sartre said this quote

“ Couldn't I try...Naturally, it wouldn't be a question of a tune...But couldn't I in another medium?...It would have to be a book: I don't know how to do anything else. But not a history book: history talks about what has existed - an existent can never justify the existence of another existent. My mistake was to try to resuscitate Monsieur de Rollebon. Another kind of book. I don't quite know which kind - but you would have to guess, behind the printed words, behind the pages, something which didn't exist, which was above existence. The sort of story, for example, which could never happen, an adventure. It would have to be beautiful and hard as steel and make people ashamed of their existence.I am going, I feel irresolute. I dare not make a decision. If I were sure that I had talent...but I have never, never written anything of that sort; historical articles, yes - if you could call them that. A book. A novel. And there would be people who would read this novel and who would say: 'It was Antoine Roquentin who wrote it, he was a red-headed fellow who hung about in cafés', and they would think that about my life as I think about the life of the Negress: as about something precious and almost legendary. A book. Naturally, at first it would only be a tedious, tiring job, it wouldn't prevent me from existing or from feeling that I exist. But a time would have to come when the book would be written, would be behind me, and I think that a little of its light would fall over my past. Then, through it, I might be able to recall my life without repugnance. Perhaps one day, thinking about this very moment, about this dismal moment at which I am waiting, round-shouldered, for it to be time to get on the train, perhaps I might feel my heart beat faster and say to myself: 'It was on that day, at that moment that it all started.' And I might succeed - in the past, simply in the past - in accepting myself. ”