Quotes from book
Nausea

Nausea is a philosophical novel by the existentialist philosopher Jean-Paul Sartre, published in 1938. It is Sartre's first novel and, in his own opinion, one of his best works.The novel takes place in 'Bouville' a town similar to Le Havre, and it concerns a dejected historian, who becomes convinced that inanimate objects and situations encroach on his ability to define himself, on his intellectual and spiritual freedom, evoking in the protagonist a sense of nausea.

Variant: It's quite an undertaking to start loving somebody. You have to have energy, generosity, blindness. There is even a moment right at the start where you have to jump across an abyss: if you think about it you don't do it.
Source: Nausea (1938)
Context: I know. I know that I shall never again meet anything or anybody who will inspire me with passion. You know, it's quite a job starting to love somebody. You have to have energy, generosity, blindness. There is even a moment, in the very beginning, when you have to jump across a precipice: if you think about it you don't do it. I know I'll never jump again.

“Little flashes of sun on the surface of a cold, dark sea.”
Source: Nausea

“Every existing thing is born without reason, prolongs itself out of weakness and dies by chance.”
Tout existant naît sans raison, se prolonge par faiblesse et meurt par rencontre.
Nausea (1938)

Variant: Most of the time, because of their failure to fasten on to words, my thoughts remain misty and nebulous. They assume vague, amusing shapes and are then swallowed up: I promptly forget them.
Source: Nausea