"I have understood the Self-Taught Man's method; he teaches himself alphabetically...One day, seven ears ago he came pompously into this readingroom. He scanned the unnumerable books which lined the walls and he must have said something like Rastignac, 'Science! It is up to us.' Then he went and took the first book from the first shelf on the far right; he opened to the first page, with a feeling of respect and fear mixed with an unshakable decision...He has read everything...There is a universe behind and before him. And the day is approaching when closing the last book on the last shelf on the far left: he will say to himself, 'Now what?'"
"I can no longer distinguish present from future and yet it lasts, it happens little by little; the old woman advances in the deserted street, shuffling her heavy mannish brogues. This is time, time laid bare, coming slowly into existence, keeping us waiting, and when it does come making us sick because we realize it's been there for a long time. The old woman reaches the corner of the street, no more than a bundle of black clothes. All right then, it's new, she wasn't there a little while ago. But it's a tarnished deflowered newness, which can never surprise. She is going to turn the corner, she turns-during an eternity."
"The feeling of adventure definitely does not come from events: I have proved it. It's rather the way in which the moments are linked together. I think this is what happens: you suddenly feel that time is passing, that each instant leads to another, this one to another one and so on; that each instant is annihilated and that it isn't worth while to hold it back, etc., etc. And then you attribute this property to events which appear to you in the instants; what belongs to the form you carry over to the content. You talk a lot about this amazing flow of time but you hardly see it. You see a woman, you think that one day she'll be old, only you don't see her grow old. But there are moments when you think you see her grow old and feel yourself growing old with her: this is the feeling of adventure.
If I remember correctly, they call that the irreversibility of time. The feeling of adventure would simply be that of the irreversibility of time. But why don't don't we always have it? Is it that time is not always irreversible? There are moments when you have the impression that you can do what you want, go forward or backward, that it has no importance; and then other times when you might say that the links have been tightened and, in that case, it's not a question of missing your turn because you could never start again."
A couple of my favorite passages from Nausea by Jean-Paul Sartre